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SEAC

SEAC Unifleece Undersuit

Price without code 117.99

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22 Reviews

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Features of SEAC Unifleece

Product description of SEAC Unifleece Undersuit

Description summary

We present you the new overalls with UNIFLEECE thermal properties , made of special fabrics of excellent quality and Powertex fabric that provides greater resistance and durability. Internally it is made of nylon with special blind stitching seams so that water does not leak. In the areas of the shoulders, knees, elbows and buttocks, the suit is reinforced with a highly resistant material.

It has a large and functional pocket made of Cordura 1000 and a flap sealed with velcro. It features a full zip design from neck to crotch. Its semi-rigid ankle boots are comfortable and easy to wear.

Lightweight, breathable, 2-layer undergarment keeps you warm while diving in cold environments Outer layer repels water to help keep you dry Double-Ended front zipper gets you in and out quickly Ankle stirrups prevent bunching when putting on your drysuit Easy-access zippered pockets for carrying extra gear Wear the Seac Drysuit Unifleece Insulating Undergarment under your drysuit to stay warm while diving in cold water.

Made from soft, lightweight, breathable material with a water-repellant outer layer.

Double-Ended front zipper and ankle stirrups let you put on your drysuit without bunching.

Carry extra gear in easy-access zippered pockets.

Specifications

Technical specifications of SEAC Unifleece

Features of SEAC Unifleece

Color Black

Color

Black

Gender Men

Gender

Men

Age Adult

Age

Adult

Key differentiators

Convenient front zip for easy entry and exit.

Designed for thermal protection in water 15°C and up.

Features ankle stirrups to prevent bunching inside a drysuit.

Lightweight, breathable material with a water-repellent outer layer.

Reinforced knees for enhanced durability.

Technology in SEAC Unifleece Undersuit

Energy rating

Warnings

4.91 / 5

22 Reviews

What our customers are saying about SEAC Unifleece Undersuit

Discover premium wetsuit undersuits offering excellent quality and comfort. This thermal base layer provides surprising warmth despite its thin, polyester-like material, suitable for water temperatures around 10°C or higher as a single layer. For colder conditions, it functions effectively as a base layer with additional thermal protection. Buyers praise its stretchy fit, ensuring easy sizing and a perfect fit under drysuits. Experience a soft touch and a well-cut design for your underwater adventures

SEAC Unifleece Undersuit

great clothes for real money

2025/12/10

Ilia

I haven't tested it in water yet, but it looks good, fits well, and is comfortable. I don't know yet how warm it will be underwater.

SEAC Unifleece Undersuit

Good Quality

2025/11/19

PHILIP

Good Quality packing was done good . Delivered in good condition . Will recommend any time.

SEAC Unifleece Undersuit

SEACSUB 2XL

2024/05/27

IHAR

Хорошее качество. Хорошо тянется. На 187/97 - 2XL подошел хорошо.

SEAC Unifleece Undersuit

Optimal

2023/11/22

Marco

Excellent under wetsuit right size

SEAC Unifleece Undersuit

Comfortable but not warm enough

2023/06/07

moon

good underwear and very comfortable, unfortunately it´s not warm enough for me even in the cold water at 18°-21°. So it´s not for those who are always cold

SEAC Unifleece Undersuit

nice undersuit not for cold water diving on it's own

2023/03/16

SYD

Receive quickly, nice quality but not very thick/heavy. Seac doesn''t inform on the material weight but I guess it is around 100g/m. Quite stretchy so adjusts easily to different sizes and fits under trilam or neoprene drysuits. As a single undersuit OK for 15 degrees upwards. With a separate base layer and extra thermal core protection on top would be OK down to 12 degrees. Below 12 degrees it should work as a base layer only with decent thermal layer on top. Size L fitted 2 people height 177-183cms and 65 - 85 kgs.

SEAC Unifleece Undersuit

Good quality product

2022/07/12

Alexandre

Good quality product! It kept me warm in 16C water. I haven't tested it colder, but it looks very good!

SEAC Unifleece Undersuit

Warm and comfortable

2022/02/13

Lilian

Well-cut clothing, the size corresponds to warm underwear, but in water below 10 degrees, provide technical clothing (under a football shirt that sticks to the skin) because after 20 to 25 minutes of diving, the cool begins to cool. to make felt. Easy to put on

SEAC Unifleece Undersuit

Low price and high quality

2022/01/27

ryu won suk

The price is cheap, but the soft touch and comfort are satisfactory.

SEAC Unifleece Undersuit

Internal form

2021/09/23

Josef

The form is very warm and comfortable!

SEAC Unifleece Undersuit

Great value for money.

2021/06/25

ryan lee

It is made of a polyester-like material and is thin, but warmer than expected. It is not cold if you wear it with an underwear set at a water temperature of about 5 degrees. It is okay to wear it as a single piece at a temperature of about 10 degrees or more. Instead, it's made of a polyester material, so it swells in places where there's a lot of friction. I recommend it though.

SEAC Unifleece Undersuit

Agreeable

2021/06/04

Willy

Absolutely beautiful to dress in, fit perfectly!

SEAC Unifleece Undersuit

Top quality

2020/11/26

Ringo

Very satisfied, fast shipping, top quality

SEAC Unifleece Undersuit

For my partner

2020/10/07

Abi

Very pleased with the quality!

SEAC Unifleece Undersuit

Good quality

2020/07/07

João

Very good quality!

SEAC Unifleece Undersuit

Very cool

2020/06/26

Denis

Cool insulation, excellent quality

SEAC Unifleece Undersuit

Seac unfleece

2020/02/05

Oleg

good quality. EU size chart

SEAC Unifleece Undersuit

Seac unfleece

2020/02/05

Oleg

good condition. Size chart is EU

SEAC Unifleece Undersuit

Seac unfleece

2020/02/05

Oleg

good condition

SEAC Unifleece Undersuit

Seac unfleece

2020/02/05

Oleg

good condition

SEAC Unifleece Undersuit

Seac unfleece

2020/02/05

Oleg

good condition

SEAC Unifleece Undersuit

Very good.

2018/05/17

Taewon Kyung

Very good.

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The question has already been answered, thank you very much for trying to help another customer. We will count on you for future questions.

Include AI Generated questions and answers

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Is this Seac undersuit suitable for men?

Answer of Generated by AI and verified

Yes, this Seac Unifleece Undersuit is specifically designed for adult men, offering a fit tailored to a male physique.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

What material is the Seac Unifleece Undersuit made from?

Answer of Generated by AI and verified

This undersuit features a nylon construction. The internal lining is also made of nylon, providing a soft and comfortable feel against the skin.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Does this undersuit have any pockets?

Answer of Generated by AI and verified

Yes, this undersuit is equipped with one pocket for carrying small gear or accessories.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

What type of closure system does this undersuit use?

Answer of Generated by AI and verified

This undersuit features a front zip entry system, which allows for easy dressing and undressing.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Is the Seac Unifleece Undersuit breathable?

Answer of Generated by AI and verified

Yes, the material used in this undersuit is breathable, which helps manage comfort during and after your dive.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

How are the seams constructed on this undersuit?

Answer of Generated by AI and verified

The Seac Unifleece Undersuit is made with blind stitching seams. This type of construction helps to minimize water leakage, keeping you warmer.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Does this undersuit have any reinforced areas?

Answer of Generated by AI and verified

Yes, it includes reinforced knees for added durability in high-wear areas. The product description also mentions reinforcements on the shoulders, elbows, and buttocks.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Does this suit have ankle stirrups?

Answer of Generated by AI and verified

Yes, this undersuit is equipped with ankle stirrups. These help prevent the legs from bunching up when you are putting on your drysuit over it.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

What is the recommended water temperature for this undersuit?

Answer of Generated by AI and verified

This thermal undersuit is designed to provide good insulation and warmth for diving in water temperatures of 15°C and higher.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Can I wear this as a standalone suit?

Answer of Generated by AI and verified

This product is designed as a thermal undersuit to be worn under a wetsuit or drysuit for added insulation, particularly for diving. It is not intended to be used as a standalone wetsuit.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Can this undersuit be used for cold water diving?

Answer of Generated by AI and verified

Yes, this undersuit is suitable for diving and provides insulation for water temperatures of 15°C and up. For colder dives, it functions effectively as a warm base layer when combined with other thermal protection.

* Generated by AI based on customer and product data

2026-09-13

Generated by AI and verified

SEAC Unifleece Undersuit

Does this undersuit repel water?

Answer of Generated by AI and verified

Yes, the Seac Unifleece Undersuit features a water-repellent outer layer, which helps to keep you drier and warmer during your activities.

* Generated by AI based on customer and product data

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Use cases

Thermal Layer for Temperate Water Scuba Diving 90% Fit

This undersuit is an ideal thermal layer for recreational diving in temperate waters. Its design provides warmth for water temperatures of 15°C and up, while the stretchy nylon material and front zip make it easy to wear under a primary wetsuit or drysuit.

temperature_suitability,material,entry_system

Underlayer for Drysuit Diving 85% Fit

As a base layer beneath a drysuit, this undersuit offers reliable insulation without adding excessive bulk. The breathable nylon lining helps manage comfort, and the ankle stirrups are a practical feature to keep the legs from bunching up when putting on the outer suit.

ankle_stirrups,breathable,internal_lining

Enhanced Durability for Training Dives 80% Fit

For beginner divers practicing skills that involve contact with surfaces, like kneeling on the bottom, this undersuit provides an extra layer of protection. The reinforced knee areas add durability where it's needed most during training sessions.

reinforced_knees,seam_construction

Layering for Other Cool Water Sports 60% Fit

While designed for diving, this undersuit can also provide a practical thermal base layer for other cool-water activities like kayaking or stand-up paddleboarding. The water-repellent outer layer and flexible material offer warmth and freedom of movement.

water_repellent_outer_layer,material

Best for

Ideal for New Divers

This undersuit offers reliable thermal performance for water temperatures of 15°C and up, with a user-friendly front zip and ankle stirrups that prevent bunching, making it a practical choice for getting started.

Temperature suitability: 15, Closure type: Front Zip, Ankle stirrups: yes

Great Value for Cold Water Comfort

With features like a water-repellent outer layer, blind stitching to reduce water entry, and reinforced areas, this undersuit provides essential warmth and durability at an accessible price point.

Water repellent outer layer: yes, Seam construction: blind stitching, Reinforced knees: yes

Best for Unrestricted Movement

The lightweight, stretchy nylon material and ergonomic design provide excellent flexibility, allowing for a full range of motion during active dives.

Material: nylon

Benefits

FunctionalStay Warm and Comfortable on Your Dives

This undersuit provides essential thermal insulation, making it suitable for water temperatures of 15°C and up. The breathable, water-repellent outer layer and soft nylon internal lining work together to keep you comfortable throughout your dive.

Temperature suitability: 15

Internal lining: nylon

Breathable: yes

Water repellent outer layer: yes

FunctionalEnjoy Unrestricted Movement Underwater

Designed for diving, this undersuit allows for excellent freedom of movement. The front zip entry system makes it easy to put on, while the integrated ankle stirrups prevent the suit from riding up under your main wetsuit or drysuit.

Closure type: Front Zip

Ankle stirrups: yes

Entry system: front_zip

Intended use: diving

FunctionalBuilt for Lasting Underwater Use

This undersuit is constructed for durability and to provide an extra layer of protection. It features reinforced knees and special blind stitching seams, enhancing its resilience for regular diving activities.

Durability and water resistance: yes

Reinforced knees: yes

Ideal buyer profiles

The Beginner Diver

This diver is new to the sport and is looking for reliable, comfortable gear that makes their initial dives more enjoyable. They prioritize warmth, ease of movement, and gear that is straightforward to use as they build their skills and confidence underwater.

The Seac Unifleece Undersuit is ideal for beginners due to its excellent thermal insulation for water 15°C and up, keeping them comfortable during dives. The front zip closure makes it easy to put on and take off, while the stretchy nylon material and ankle stirrups ensure it stays in place under a drysuit or wetsuit, allowing for unrestricted movement.

The Cold Water Explorer

This individual regularly dives in temperate or cooler waters and requires an effective thermal layering system to stay warm. They value gear that enhances comfort on longer or deeper dives, allowing them to focus on the underwater environment rather than the cold.

With its high thermal insulation properties, breathable construction, and water-repellent outer layer, this undersuit is a perfect mid-layer for cold water diving. The blind-stitched seams prevent water leakage, and the lightweight design fits comfortably under a primary suit without adding bulk, providing the necessary warmth for extended adventures.

The Practical Water Sports Participant

This person participates in various water sports and needs versatile, durable apparel that offers protection and flexibility. They look for functional gear with features that enhance performance and can withstand regular use across different activities.

This undersuit's durable construction, with reinforced areas on the knees, provides the resilience needed for active water sports. The stretchy nylon material offers excellent flexibility for a full range of motion, while features like the front zip and ankle stirrups make it a practical and functional choice for diving and other water-based activities.

Competitive features

The Seac Unifleece Undersuit is a versatile thermal layer designed for added warmth under a wetsuit or drysuit. Unlike the other items in this comparison, which are standalone wetsuit components like pants or jackets, the Unifleece is a full undersuit. It's engineered to provide insulation in water temperatures of 15°C and up, or as a base layer for colder dives. While the other products are primary neoprene garments of varying thicknesses, this undersuit focuses on providing a soft, stretchy, and comfortable thermal layer underneath your main exposure protection.

Where it excels

Versatility as a thermal layer, suitable for use under both wetsuits and drysuits to boost warmth. Designed with a lightweight, stretchy material for a comfortable, well-cut fit that is easy to put on. Features reinforced areas on the shoulders, knees, elbows, and buttocks for enhanced durability. Includes a functional pocket made of Cordura 1000 for utility during dives.

Consider alternatives if...

Verdict

The Seac Unifleece Undersuit is an excellent choice for divers seeking a flexible thermal solution rather than a primary wetsuit. Its main function is to add a layer of insulation, making it ideal for enhancing the warmth of an existing wetsuit in cooler conditions or for use on its own in warmer water (15°C+). It stands apart from dedicated neoprene pants, jackets, or full suits by prioritizing its role as a comfortable, durable, and easy-to-wear undergarment. If you need to boost your current setup's thermal protection without buying a new, thicker wetsuit, this undersuit is a practical and effective option.

Specs comparison

Specs vs competitors

Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Materialnylonneopreneneopreneneopreneneoprene
Seam Constructionblind stitchingtwo-piece--flatlock
Intended Usedivingdivingdivingdivingdiving
Closure SystemFront ZipVelcro neck closure-Back ZipFront Zip
FormFull SuitOne Piece---
Reinforced KneesYesYes-YesNo
Entry SystemFront ZipBack ZipFront ZipBack ZipFront Zip
Internal Liningnylonopen-cellPlush Lining-jersey
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