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Mares XR Comfort Undersuit

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Features of Mares XR Comfort

Product description of Mares XR Comfort Undersuit

Description summary

Elevate your dive comfort with the MARES XR Comfort Undersuit. Engineered with advanced Polartec® Powerstretch®, this ultra-lightweight suit offers superior thermal insulation, trapping air to keep you warm without bulk. Its breathable, fleece-lined panels wick away moisture, ensuring you stay drier and more comfortable. Designed for ergonomic fit with flat seams, thumb-loops, and secure foot pockets, it provides exceptional freedom of movement. Versatile as a base or mid-layer, it´s ideal for neoprene dry suits. Dive longer, colder, and more comfortably. Includes a dry sack for convenient storage

MARES XR Comfort Undersuit

Category: Suits and complements
Subcategory: Underwear suits
Attributes: Adult, Men

Discover the ultimate in thermal protection and dive comfort with the MARES XR Comfort Undersuit. Engineered for the discerning diver who refuses to let the cold dictate their dive time, this undersuit is a pinnacle of thermal insulation technology. Whether you are exploring temperate waters or pushing the limits on a technical dive, the XR Comfort Undersuit provides exceptional warmth without the cumbersome bulk, ensuring you remain agile and streamlined in the water. Its intelligent design allows it to function perfectly as a primary base layer against the skin or as an insulating mid-layer, making it an incredibly versatile addition to any diver´s gear bag, especially for those using neoprene dry suits.

The secret to its superior performance lies in its advanced construction, centered around the legendary Polartec® Powerstretch® fabric—a material originally developed to meet the extreme demands of NASA. This technology creates a thermal barrier that traps a layer of air next to your skin, which is a far more effective insulator than water, providing consistent and reliable warmth throughout your dive. The breathable, fleece-lined panels are strategically placed to offer windproof and water-resistant properties, actively managing moisture by wicking it away from your body. This ensures you stay significantly drier and more comfortable, even during periods of high exertion. The ultra-lightweight nature of the suit means you get all the warmth you need without contributing to excess bulk or unwanted buoyancy, allowing for a more natural and controlled diving experience.

Mares has meticulously designed the XR Comfort Undersuit with the diver´s ergonomics in mind. Every seam is flat-stitched to sit smoothly against the skin, eliminating chafing and irritation for next-to-skin comfort on long dives. The suit´s construction provides enhanced durability and exceptional freedom of movement, allowing you to perform necessary skills and maneuvers without restriction. Thoughtful features like integrated thumb-loops prevent the sleeves from riding up when donning your dry suit, while the uniquely designed, secure foot pockets ensure the legs stay perfectly in place. As a final touch, each suit is supplied with its own lightweight dry sack, providing a convenient way to keep your undersuit protected and dry among your other wet dive gear after a day in the water.

Features:

* Can be used as a base layer or as a mid-layer under a dry suit - perfect for neoprene dry suits
* Made using Polartec® Powerstretch®
* Breathable, fleece-lined, windproof and water-resistant panels
* Traps a layer of air - a much better insulator than water - next to the skin
* Warm without contributing to bulk or buoyancy
* Flat seams for next to skin comfort
* Enhanced durability and freedom of movement
* Keeps the wearer drier and more comfortable
* Ultra-lightweight
* Thumb-loops hold sleeves in place during donning
* Uniquely designed secure foot pockets
* Unisex range
* Every suit comes with a lightweight dry sack, ideal for keeping the undersuit and other items dry amongst wet dive gear

Technical specifications of Mares XR Comfort

Features of Mares XR Comfort

Color Black

Color

Black

Gender Men

Gender

Men

Age Adult

Age

Adult

Key differentiators

Constructed from Polartec® Powerstretch® for breathable, water-resistant thermal protection.

Designed for temperate water diving, suitable for temperatures above 10°C.

High flexibility and flatlock seams for enhanced freedom of movement and comfort.

Includes thumb loops, secure foot pockets, and a lightweight dry sack.

Ultra-lightweight, low-buoyancy design provides warmth without bulk and may reduce the need for extra weight.

Technology in Mares XR Comfort Undersuit

Energy rating

Warnings

5 / 5

3 Reviews

What our customers are saying about Mares XR Comfort Undersuit

Discover a versatile wetsuit undersuit offering warmth for moderate waters, ideal for temperatures around 13°C. Its excellent material quality provides a good fit, though it may feel snug with extra weight. The good length is suitable for most, and its lightweight design ensures comfort. This performance thermal underwear is a great choice for diving gear and watersports, providing reliable insulation without being overly bulky. Note its limitations in very cold conditions below 10°C for extended periods

Mares XR Comfort Undersuit

Good quality

2024/03/21

Tiago

This underwear is good for not too cold waters. I used it at 13ºC. I would avoid using it in colder waters. It is slightly tight if there is a little extra weight. It's good in length. Overall I am very satisfied.

Mares XR Comfort Undersuit

Quality

2024/02/09

Gali Laszlo

Excellent material quality, very good material, warm underwear, you have to shorten the length but it is absolutely perfect.

Mares XR Comfort Undersuit

Good undersuit

2021/11/20

Nicholas

Excellent undersuit, light and with excellent fit. I didn't add weights to my belt and got off without a problem. I'm not cold, but I wouldn't use it below 10 ° C for more than 30min. In this case, a heavier undersuit would be needed.

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Include AI Generated questions and answers

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

What is the Mares Xr Comfort Undersuit made from?

Answer of Generated by AI and verified

This undersuit is constructed from Polartec® Powerstretch® material, which features breathable, fleece-lined, windproof, and water-resistant panels for comfort and thermal protection.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

What are the key comfort features of this undersuit?

Answer of Generated by AI and verified

For enhanced comfort, the Mares Xr Comfort Undersuit features flat seams to feel smooth against the skin, thumb-loops to keep sleeves in place, and secure foot pockets. It is also designed for high flexibility to allow for freedom of movement.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Is this undersuit buoyant in the water?

Answer of Generated by AI and verified

This undersuit features a low buoyancy design, which means you may not need to add extra weight to your belt during a dive.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Does this undersuit come with any accessories?

Answer of Generated by AI and verified

Yes, every suit includes a lightweight dry sack, which is ideal for keeping the undersuit and other items dry among wet dive gear.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

What kind of seams does the Mares Xr Comfort Undersuit have?

Answer of Generated by AI and verified

This undersuit is made with flatlock seams, designed for next-to-skin comfort during use.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Is this undersuit breathable?

Answer of Generated by AI and verified

Yes, this undersuit is designed to be breathable, helping to keep you drier and more comfortable during your dive.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Is this undersuit waterproof?

Answer of Generated by AI and verified

Yes, the product attributes indicate it is waterproof. The design includes water-resistant panels to help protect against water.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Does the Mares Xr Comfort Undersuit include a hood?

Answer of Generated by AI and verified

No, this undersuit does not come with an integrated hood.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

What water temperatures is this undersuit suitable for?

Answer of Generated by AI and verified

This undersuit is designed for diving in temperate water, specifically in conditions above 10°C. For colder conditions, an additional heavier thermal layer would be needed.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Can this be worn as a standalone layer?

Answer of Generated by AI and verified

Yes, it can be used as a base layer on its own or as a mid-layer under a dry suit, making it particularly suitable for use with neoprene dry suits.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

Mares XR Comfort Undersuit

Who is this undersuit designed for?

Answer of Generated by AI and verified

This is an adult undersuit designed for men who participate in diving activities.

* Generated by AI based on customer and product data

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Use cases

Recreational Diving in Temperate Waters 95% Fit

This undersuit is an ideal thermal layer for recreational divers using a drysuit in temperate conditions. Its high flexibility and lightweight design provide exceptional comfort and freedom of movement, enhancing the overall dive experience without adding bulk.

High flexibility,Breathable fleece-lined panels,Low buoyancy design,Water temperature suitability for temperate conditions

Technical Diving Base Layer 80% Fit

For technical divers, this undersuit serves as a versatile and reliable base layer under a primary thermal suit and drysuit. The breathable Polartec® Powerstretch® material helps manage moisture during long or strenuous dives, while the low buoyancy design complements a streamlined technical rig.

Material: Polartec® Powerstretch®,Breathability,Low buoyancy design,Thumb loops and secure foot pockets

Drysuit Diving Training 90% Fit

This undersuit is a great all-rounder for divers completing their drysuit certification or other advanced training. Its comfortable fit, facilitated by flat seams, and high flexibility allow students to focus on skills without being restricted by their gear, providing a balanced and reliable option for repeated pool and open water sessions.

Flat seams for comfort,High flexibility,Ultra lightweight,Includes lightweight dry sack

Cold Water Surface Sports (as a layer) 70% Fit

While designed for diving, this undersuit's properties make it a versatile thermal layer for surface water sports like kayaking or sailing in cooler weather. Worn under a waterproof outer shell, its breathable, fleece-lined, and water-resistant panels provide warmth and comfort without sacrificing mobility.

Breathable fleece-lined panels,Waterproof panels,High flexibility,Ultra lightweight

Best for

Best for Divers Seeking High Performance

This undersuit is crafted from Polartec® Powerstretch® and features a high-flexibility design, offering superior thermal protection and freedom of movement without adding bulk.

Material: Polartec® Powerstretch®, Flexibility: High

A Reliable Upgrade for Regular Divers

With its high flexibility, breathable fleece-lined panels, and flat seams, this undersuit provides a significant step up in comfort and movement for temperate water diving.

Flexibility: High, New attribute breathable fleece lined panels: yes, Seam construction: Flatlock

Ideal for New Divers Investing in Quality Gear

Its ultra-lightweight construction, low-buoyancy design, and user-friendly features like thumb loops and foot pockets make it a comfortable and practical choice for those new to diving.

New attribute ultra lightweight: yes, Buoyancy: Low, New attribute thumb loops: yes

Great All-Rounder for Active Water Sports

This undersuit's combination of high flexibility, breathability, and wind/water resistance makes it a versatile layer for diving and other activities where movement and thermal comfort are key.

Flexibility: High, Breathability: yes, Waterproof: yes

Benefits

FunctionalStay Warm and Dry Without the Bulk

This undersuit provides impressive thermal protection suitable for temperate water diving. It features breathable, fleece-lined panels that are also windproof and water-resistant, trapping insulating air next to your skin for warmth without adding unnecessary bulk.

FunctionalDesigned for Practicality and Easy Donning

Thoughtful design features make this undersuit exceptionally practical. Integrated thumb loops and secure foot pockets prevent the sleeves and legs from riding up when putting on your drysuit, while the included lightweight dry sack makes for easy transport and storage.

FunctionalOptimized Buoyancy for a More Efficient Dive

The undersuit features a low buoyancy design, which can reduce the amount of extra weight you need to carry. This contributes to a more streamlined profile, enhanced comfort, and greater efficiency underwater.

Ideal buyer profiles

The Diving

This diver seeks high-performance gear for frequent use in temperate waters. They prioritize comfort, freedom of movement, and effective thermal protection to maximize their time and enjoyment underwater. They value gear that is both functional and durable, allowing them to focus on the dive itself.

The Mares XR Comfort Undersuit is an excellent match for the diving users. Its impressive thermal protection, featuring breathable, fleece-lined panels, is ideal for temperate water diving (suitable for water above 10°C). The high flexibility and flatlock seams ensure enhanced freedom of movement and next-to-skin comfort, while the ultra-lightweight design and low buoyancy reduce the need for extra weight, making for a more enjoyable dive experience.

The Premium Gear Seeker

This buyer invests in top-tier equipment that offers advanced features and superior materials. They are willing to pay for quality that translates to better performance, comfort, and longevity. For them, the technology and design details of their gear are as important as its primary function.

This undersuit meets the premium seeker's criteria with its use of Polartec® Powerstretch® material, originally developed for NASA, providing excellent thermal properties and flexibility. Features like thumb loops, secure foot pockets, and a low buoyancy design demonstrate a focus on performance. The inclusion of a lightweight dry sack adds to the premium experience, making the Mares XR Comfort Undersuit a standout choice.

The Comfort-Focused Diver

This individual places the highest importance on comfort during their dives. They look for gear that fits well, doesn't restrict movement, and keeps them warm without being bulky. Anything that chafes, feels restrictive, or causes discomfort is a deal-breaker.

With its ultra-lightweight construction, high flexibility, and flat seams designed for next-to-skin comfort, the Mares XR Comfort Undersuit is ideal. The breathable, fleece-lined panels provide warmth without bulk, and the Polartec® Powerstretch® material allows for exceptional freedom of movement. Thumb loops and secure foot pockets also prevent the suit from riding up, ensuring a comfortable and secure fit throughout the dive.

Competitive features

When evaluating the Mares Xr Comfort Undersuit against a selection of traditional diving wetsuits and jackets, the primary distinction lies in its intended function. This fundamental difference makes a direct feature-for-feature comparison challenging, as they serve different roles in a diver's thermal protection system. The Xr Comfort Undersuit focuses on providing a lightweight, breathable, and comfortable thermal layer for temperate water, while the competitor products offer all-in-one insulation and abrasion protection through their neoprene construction.

Where it excels

Versatility: The Mares Xr Comfort Undersuit can be used as a base or mid-layer under a dry suit, particularly neoprene ones, providing warmth without significant bulk or buoyancy. This makes it a flexible addition to a diver's gear for temperate water conditions (above 10°C). Comfort and Mobility: Made with Polartec® Powerstretch®, this undersuit is designed for next-to-skin comfort with flat seams. Its lightweight and flexible nature, enhanced by thumb-loops and secure foot pockets, ensures excellent freedom of movement.

Consider alternatives if...

Verdict

The Mares Xr Comfort Undersuit is an excellent choice for divers seeking a high-performance thermal layer to wear under a dry suit in temperate waters. Its design prioritizes comfort, mobility, and warmth without adding bulk or buoyancy, thanks to its Polartec® Powerstretch® material. It is not a standalone wetsuit and should be considered as a component of a larger thermal system. For divers needing a single-piece, full-body wetsuit for direct water contact, competitors like the Cressi Endurance or Abysstar Pacific would be more appropriate.

Specs comparison

MaterialPolartec® Powerstretch®ultrastretch neopreneultrastretch neoprene
Hood IncludedNoNoNo
Intended UseDivingdivingdiving
TypeDiving WetsuitDiving WetsuitDiving Wetsuit
Water Temperature Rangetemperatetemperatetemperate

Specs vs competitors

MaterialPolartec® Powerstretch®neoprene, polyester, Lycrax-foam neoprenex-foam neoprenex-foam neoprenenylon
Hood IncludedNoNoNoNoNoNo
Seam ConstructionFlatlockFlat Seamflat-lockPure Design ConceptGlued/Blind-Stitched-
Intended UseDivingdivingdivingdivingdivingdiving
TypeDiving WetsuitDiving WetsuitDiving WetsuitDiving WetsuitDiving WetsuitDiving Wetsuit
Water Temperature Rangetemperatetemperatetemperatetemperate-temperate
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