Bare Men's SB Mid Layer Full Drysuit Undergarment
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Overview
The BARE Men's SB Mid Layer Full is a one-piece drysuit undergarment designed to provide warmth, moisture management, and freedom of movement without unnecessary bulk. Its stretch, breathable, compression-resistant fleece is engineered specifically for diving and is designed to maintain insulating performance as depth changes.
Part of BARE's SB System, this mid layer uses Polartec Power Stretch® technology with high 4-way stretch for a close, comfortable fit under a drysuit. Quick-drying and moisture-management properties help move moisture away from the body, while antimicrobial treatment helps keep the fabric fresh during repeated use.
Best For
- Drysuit diving
- Divers looking for warmth without excessive undergarment bulk
- Layering as part of the BARE SB System
- Use as a standalone thermal undergarment when appropriate for the diving conditions
- Divers who value stretch and mobility beneath a drysuit
Key Features
- Compression-Resistant Fleece: Designed to maintain insulating performance as depth changes while reducing the need for bulky loft.
- High 4-Way Stretch: Form-fitting stretch construction reduces bulk and promotes freedom of movement beneath a drysuit.
- High Warmth-to-Weight Ratio: Provides thermal insulation and breathability specifically suited to diving applications.
- Moisture Management: Designed as the second stage in moving moisture away from the skin to help keep the diver dry and comfortable.
- Quick-Drying Fabric: Promotes rapid evaporation of moisture between and during dives.
- Antimicrobial Treatment: Helps inhibit bacterial growth, maintain fabric freshness, and control odor.
- Polartec Power Stretch®: Stretch fleece technology combines flexibility, breathability, and thermal performance.
- Offset Front Zipper: Front-entry zipper is positioned away from the center of the neck to reduce bulk beneath the drysuit neck seal.
- Two-Way Diagonal Zipper: Extra-long zipper provides convenient access and accommodates insertion of a pee-valve relief tube.
- Thumb Loops: Low-profile loops help keep the sleeves positioned while donning a drysuit.
- Ankle Stirrup Loops: Lycra stirrups help keep the legs in place during drysuit donning.
- Left-Waist Pocket: Zippered stretch pocket provides storage for a key or ID.
- Flatseam Construction: Flat stitching throughout helps reduce unnecessary seam bulk.
- One-Piece Design: Full-body construction provides continuous coverage and comfortable layering.
Specifications
- Brand: BARE
- Model: SB Mid Layer Full
- Product Type: Men's Drysuit Mid-Layer Undergarment
- Design: One-Piece Full Suit
- Material: Polyester / Spandex Antimicrobial Fleece
- Fabric Technology: Polartec Power Stretch®
- Construction: Stretch, Breathable & Compression Resistant
- Seams: Flatseam Stitching
- Entry: Extra-Long Two-Way Diagonal Front Zipper
Warmth & Compression Resistance
Unlike conventional fleece that relies heavily on loft for insulation, BARE's compression-resistant fleece is engineered for use beneath a drysuit. The material is designed to retain insulating performance as pressure changes while keeping the undergarment relatively streamlined.
Moisture Management
The SB Mid Layer Full is designed as the second stage in BARE's moisture-management system, helping move moisture farther away from the skin. Its breathable and quick-drying properties promote evaporation to help maintain comfort during extended or repeated diving.
Fit & Mobility
High 4-way stretch allows the garment to fit closely without restricting movement. The reduced bulk can make layering beneath a drysuit more comfortable, while the thumb loops and ankle stirrups help prevent the sleeves and legs from bunching during donning.
Size Chart
Use the BARE Men's Drysuits & Underwear size chart below as a general fit guide. Measure while wearing minimal clothing and use a soft measuring tape pulled snug, but not tight. Available sizes for this product may vary.
| Size | Weight | Height | Chest | Waist | Hip | Torso | Inseam |
|---|---|---|---|---|---|---|---|
| S | 135–155 lb | 5'6"–5'8" | 35–37 in | 29–31 in | 35–37 in | 27 3/8 in | 30 in |
| M Short | 140–165 lb | 5'5"–5'7" | 37–39 in | 31–33 in | 37–39 in | 26 7/8 in | 29 1/2 in |
| M | 150–175 lb | 5'8"–5'10" | 37–39 in | 31–33 in | 37–39 in | 28 3/8 in | 31 in |
| M Tall | 150–180 lb | 5'11"–6'1" | 37–39 in | 31–33 in | 37–39 in | 29 5/8 in | 32 in |
| ML Short | 160–185 lb | 5'6"–5'8" | 39–41 in | 33–35 in | 39–41 in | 27 5/8 in | 30 1/4 in |
| ML | 170–195 lb | 5'10"–6'0" | 39–41 in | 33–35 in | 39–41 in | 29 3/8 in | 32 in |
| ML Tall | 175–200 lb | 6'0"–6'2" | 39–41 in | 33–35 in | 39–41 in | 30 5/8 in | 33 in |
| L Short | 180–205 lb | 5'7"–5'9" | 41–43 in | 35–37 in | 41–43 in | 28 in | 30 1/2 in |
| L | 190–215 lb | 5'11"–6'1" | 41–43 in | 35–37 in | 41–43 in | 30 in | 32 1/2 in |
| L Tall | 195–220 lb | 6'1"–6'3" | 41–43 in | 35–37 in | 41–43 in | 31 1/4 in | 33 1/2 in |
| XL Short | 200–225 lb | 5'8"–5'10" | 43–45 in | 37–39 in | 43–45 in | 28 1/8 in | 31 in |
| XL | 210–235 lb | 6'0"–6'2" | 43–45 in | 37–39 in | 43–45 in | 30 5/8 in | 33 in |
| XL Tall | 215–240 lb | 6'2"–6'4" | 43–45 in | 37–39 in | 43–45 in | 31 7/8 in | 34 in |
| 2XL Short | 220–245 lb | 5'8"–5'10" | 45–47 in | 39–41 in | 45–47 in | 28 1/2 in | 31 1/4 in |
| 2XL | 230–255 lb | 6'1"–6'3" | 45–47 in | 39–41 in | 45–47 in | 31 1/4 in | 33 1/2 in |
| 3XL Short | 240–265 lb | 5'8"–5'10" | 47–49 in | 41–43 in | 47–49 in | 28 1/2 in | 31 1/4 in |
| 3XL | 250–275 lb | 6'2"–6'4" | 47–49 in | 41–43 in | 47–49 in | 31 7/8 in | 34 in |
| 4XL Short | 260–285 lb | 5'8"–5'10" | 49–51 in | 43–45 in | 49–51 in | 28 1/2 in | 31 1/4 in |
| 4XL | 270–295 lb | 6'3"–6'5" | 49–51 in | 43–45 in | 49–51 in | 32 1/2 in | 34 1/2 in |
How to Measure: Measure while wearing minimal clothing. Measure the chest around the fullest part, the waist around the narrowest part, the hips around the fullest part, torso vertically from the top of the shoulder to the crotch, and inseam from the crotch to the floor.
Sizing Note: The chart above is the BARE Men's Drysuits & Underwear sizing guide. Not every size shown in the manufacturer chart may be available for this specific product.
What's Included
- One BARE Men's SB Mid Layer Full Drysuit Undergarment in the selected size
FAQs
What does compression-resistant fleece mean?
Traditional insulating fleece can lose loft as pressure increases. BARE's compression-resistant fleece is specifically engineered for drysuit use and is designed to maintain its insulating properties as depth changes.
Can the SB Mid Layer Full be worn by itself?
BARE states that it can be used as part of the SB System or as a standalone garment. The appropriate layering configuration will depend on water temperature, exposure time, drysuit type, and individual thermal needs.
What is Polartec Power Stretch®?
Polartec Power Stretch® is a stretch fabric technology used in this undergarment to provide flexibility, breathability, and a close fit while retaining thermal performance.
How does the undergarment help manage moisture?
The fabric is designed to move moisture away from the skin and dry quickly, helping reduce the damp feeling that can develop during extended or repetitive diving.
What are the ankle stirrups for?
The Lycra stirrups help keep the legs of the undergarment in position while pulling a drysuit on over it.
Why is the front zipper offset at the neck?
Positioning the zipper away from the center of the neck helps reduce overlapping bulk beneath the drysuit neck seal.
Expert Insight
The SB Mid Layer Full is designed around one of the main challenges of drysuit layering: maintaining useful insulation without creating excessive bulk. Its compression-resistant stretch fleece, moisture-management properties, and donning features make it particularly useful for divers who want a close-fitting thermal layer that moves naturally beneath the drysuit.
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