Compare Our Base Layers

Not sure which Brynje layer is right for you? Pick any products below and see warmth, breathability, drying speed and more side by side.

  1. Step 1Browse the collections below.
  2. Step 2Tap Add to compare on anything that catches your eye.
  3. Step 3Open Product comparison on the left edge of your screen to see them side by side.
Arctic Wool Thermo Super Thermo Wool Thermo Light Super Micro Classic Wool Fabric guide

Warmth ●●●●● Warmest

Arctic

Two layers in one: polypropylene mesh inside, merino wool outside. Our warmest choice for long days in serious cold.

Shop all Arctic
Arctic Zip Polo 3/4 Neck with Inlay and Thumbholes - Unisex – Black – front
Arctic Zip Polo 3/4 Neck with Inlay and Thumbholes - Unisex Sale price$219.95 USD
Color
Arctic Zip Polo – Black
Arctic Zip Polo Sale price$219.95 USD
Color
Arctic Zip Polo with Thumb Holes - Women's – Black
Arctic Zip Polo with Thumb Holes - Women's Sale price$219.95 USD
Color
Arctic Longs Base Layer – Black – front
Arctic Longs Base Layer Sale price$169.95 USD
Color
Ladies Arctic Longs Merino Wool Base Layer – Black
Ladies Arctic Longs Merino Wool Base Layer Sale price$169.95 USD
Color
Arctic 3/4 Length Longs – Black – front
Arctic 3/4 Length Longs Sale price$149.95 USD
Color
Arctic Vests – Black – front
Arctic Vests Sale price$189.95 USD
Color
Tactical Arctic Zip Polo 3/4 Neck Base Layer with Thumbgrips – Tactical Grey
Tactical Arctic Zip Polo 3/4 Neck Base Layer with Thumbgrips Sale price$239.95 USD
Color
Tactical Arctic Longs Base Layer – Olive Green
Tactical Arctic Longs Base Layer Sale price$194.95 USD
Color

Warmth ●●●●○ Very Warm

Wool Thermo

Merino wool mesh. Very warm and soft against the skin, with natural odor resistance.

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Wool Thermo Long Sleeve Shirt with Inlay – Black, front
Wool Thermo Long Sleeve Shirt Base Layer with Inlay Sale price$119.95 USD
Color
Wool Thermo Longs Base Layer with Inlay – Black – front
Wool Thermo Longs Base Layer with Inlay Sale price$119.95 USD
Color
Wool Thermo T-Shirt Base Layer with Inlay – Black – front
Wool Thermo T-Shirt Base Layer with Inlay Sale price$94.95 USD
Color
Wool Thermo Zip Polo Base Layer with Inlay – Black – front
Wool Thermo Zip Polo Base Layer with Inlay Sale price$139.95 USD
Color
Wool Thermo Long Sleeve Shirt Base Layer - Women's – Black – front
Wool Thermo Long Sleeve Shirt Base Layer - Women's Sale price$119.95 USD
Color
Wool Thermo Longs Base Layer with Inlay - Women's – Black – front
Wool Thermo Longs Base Layer with Inlay - Women's Sale price$119.95 USD
Color
Wool Thermo T-Shirt Baselayer - Women's – Black – front
Wool Thermo T-Shirt Baselayer - Women's Sale price$94.95 USD
Color
Wool Thermo Women's Zip Polo – Black
Wool Thermo Women's Zip Polo Sale price$139.95 USD
Color
Wool Thermo A-Shirt Singlet Base Layer – Off White
Wool Thermo A-Shirt Singlet Base Layer Sale price$79.95 USD
Color

Warmth ●●●○○ Warm

Super Thermo

Our original polypropylene mesh. Maximum breathability and the fastest drying, built for high-output days.

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Super Thermo Long Sleeve with Inlay – Navy, front
Super Thermo Long Sleeve with Inlay Sale price$84.95 USD
Color
Super Thermo Longs Base Layer with Inlay – Navy – front
Super Thermo Longs Base Layer with Inlay Sale price$84.95 USD
Color
Super Thermo T-Shirt Base Layer with Inlay – Navy – front
Super Thermo T-Shirt Base Layer with Inlay Sale price$69.95 USD
Color
Super Thermo Zip Polo Shirt with Inlay – Black – front
Super Thermo Zip Polo Shirt with Inlay Sale price$99.95 USD
Color
Super Thermo Long Sleeve Shirt Base Layer with Inlay - Women's – Black – front
Super Thermo Long Sleeve Shirt Base Layer with Inlay - Women's Sale price$84.95 USD
Color
Super Thermo Longs Base Layer w/Inlay -Women's – Black – front
Super Thermo Longs Base Layer w/Inlay -Women's Sale price$84.95 USD
Color
Super Thermo T-Shirt Base Layer w/Inlay - Women's – Black – front
Super Thermo T-Shirt Base Layer w/Inlay - Women's Sale price$69.95 USD
Color
Super Thermo C-Shirt Base Layer – White – front
Super Thermo C-Shirt Base Layer Sale price$59.95 USD
Color
Super Thermo A-Shirt – White – front
Super Thermo A-Shirt Sale price$59.95 USD
Color
Super Thermo 3/4 Longs Base Layer, No Fly – Black – front
Super Thermo 3/4 Longs Base Layer, No Fly Sale price$74.95 USD
Color

Warmth ●●●○○ Warm

Wool Thermo Light

A lighter merino wool fine mesh for everyday warmth and comfort.

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Wool Thermo Light Shirt – Black – front
Wool Thermo Light Shirt Sale price$109.95 USD
Color
Wool Thermo Light Longs Base Layer
Wool Thermo Light Longs Base Layer Sale price$109.95 USD
Color
Wool Thermo Light T-Shirt Base Layer – Black – front
Wool Thermo Light T-Shirt Base Layer Sale price$89.95 USD
Color
Wool Thermo Light Zip Polo 3/4 Neck Base Layer – Black – front
Wool Thermo Light Zip Polo 3/4 Neck Base Layer Sale price$129.95 USD
Color
Wool Thermo Light Long Sleeve Shirt - Women's – Black – front
Wool Thermo Light Long Sleeve Shirt - Women's Sale price$109.95 USD
Color
Wool Thermo Light Longs Base Layer - Women's – Black
Wool Thermo Light Longs Base Layer - Women's Sale price$109.95 USD
Color
Wool Thermo Light T-Shirt Base Layer - Women's – Black – front
Wool Thermo Light T-Shirt Base Layer - Women's Sale price$89.95 USD
Color
Wool Thermo Light Zip Polo 3/4 Neck Base Layer - Women's – Black – front
Wool Thermo Light Zip Polo 3/4 Neck Base Layer - Women's Sale price$129.95 USD
Color
Lady Wool Sports Top - Mesh – Black – front
Lady Wool Sports Top - Mesh Sale price$84.95 USD
Color

Warmth ●●○○○ Moderate

Super Micro

A finer polypropylene mesh and our toughest fabric. Great under cycling jerseys, Nordic kits and race suits.

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Super Micro Shirt
Super Micro Shirt Sale price$69.95 USD
Color
Super Micro T-Shirt Base Layer – White – front
Super Micro T-Shirt Base Layer Sale price$59.95 USD
Color
Super Micro C-Shirt Base Layer – White – front
Super Micro C-Shirt Base Layer Sale price$54.95 USD
Color
Save $20.00
Super Micro A-Shirt
Super Micro A-Shirt Sale price$29.95 USD Regular price$49.95 USD
Color

Warmth ●●○○○ Moderate

Classic Wool

Solid-knit merino wool and our softest layer. Wear it on its own or over a mesh base layer.

Shop all Classic Wool
Classic Wool T-Shirt – Black
Classic Wool T-Shirt Sale price$104.95 USD
Color
Classic Wool Light T-shirt
Classic Wool Light T-shirt Sale price$89.95 USD
Color
Classic Wool Light T-Shirt - Women's – Navy – front
Classic Wool Light T-Shirt - Women's Sale price$89.95 USD
Color +1
Classic Zip Polo Base Layer – Black
Classic Zip Polo Base Layer Sale price$164.95 USD
Color
Classic Merino Wool Men's Boxers Base Layer
Classic Merino Wool Men's Boxers Base Layer Sale price$79.95 USD
Color
Tactical Classic Shirt – Tactical Grey
Tactical Classic Shirt Sale price$134.95 USD
Color
Tactical Classic Longs – Tactical Grey
Tactical Classic Longs Sale price$134.95 USD
Color
Tactical Classic T-Shirt – Tactical Grey
Tactical Classic T-Shirt Sale price$104.95 USD
Color

Fabric & Weave Guide

Not all baselayers handle moisture and insulation the same way. Compare our open-cell mesh against traditional solid knits, and our synthetic polypropylene against pure merino wool.

Fabric / Construction
Moisture Management
Thermal & Insulation Properties
Best For
Weave Architecture: Mesh vs. Solid Knit
Brynje Mesh Open-Cell Structure
Moisture Management
Instant transport. Small contact points don't hold water against skin. Sweat quickly turns to vapor and escapes through the open spaces.
Thermal & Insulation Properties
Variable regulation. Traps warm dead air in the open spaces when you're resting. Releases excess body heat the moment you start moving.
Best For
High-output action, stop-and-go sports, and layering in extreme cold.
Standard Solid Traditional Knit
Moisture Management
Delayed transport. Flat material absorbs sweat across its entire surface, keeping damp fabric pressed flat against your skin.
Thermal & Insulation Properties
Static insulation. Keeps you warm during steady, low-impact actions, but can cause a sudden chill when you stop moving and damp fibers cool down.
Best For
Low-intensity activities, casual wear, or steady walking in dry weather.
Material Composition: Synthetic vs. Wool
Polypropylene SUPERthermo® Synthetic
Moisture Management
Hydrophobic fibers. Absorbs virtually zero moisture (only 0.05% of its weight). It acts like a one-way pump to dry out rapidly.
Thermal & Insulation Properties
High weight-to-warmth. Offers exceptional insulation value without extra bulk. Dries out fast to keep your body temp protected.
Best For
High sweat activities, intense mountain training, and synthetic layering systems.
Merino Wool Premium Wool Blend
Moisture Management
Hydrophilic core. Can hold up to 30% of its weight in water before feeling wet, retaining performance capabilities even when damp.
Thermal & Insulation Properties
Natural buffer. Regulates temperature across a wide range of environments. Keeps you warm even when conditions take a wet turn.
Best For
Multi-day trips, sub-zero basecamps, hunting, and odor control.

Ready to build your configuration?

Now that you know how our weaves and materials interact, check out our layout guide to see how to arrange them for your environment.

+ CHAPTER 05 / COMMITMENT We don't do seasons. We don't do trends.

We make garments that last.

Repairable

Designed with construction methods that allow for easy repairs, extending the life of your gear for decades.

Timeless

Our aesthetic hasn't changed much since 1953. We focus on function over fashion cycles.

Tested

Every stitch is proven in the world's harshest environments before it ever reaches your back.