The Brynje Original Super Thermo (ST) Mesh Longs are engineered for extreme environments and high-output activity where staying dry is critical. Made from 100% Schoeller® Polycolon® polypropylene, these base-layer bottoms feature Brynje’s classic 3/8″ open-weave mesh construction, delivering 4–6 times the insulation of solid knit fabrics by weight while keeping moisture completely off the skin.
Polycolon® polypropylene absorbs virtually no moisture, and the open mesh structure allows perspiration to move away from the body in vapor form—eliminating the discomfort and heat loss caused by damp base layers. The result is exceptional warmth, outstanding moisture management, and ultralight performance in demanding cold-weather conditions.
With an outstanding strength-to-weight ratio, Super Thermo garments are built to withstand years of hard use. Trusted by expedition teams and Special Forces units worldwide, the ST Mesh Longs are ideal for hunting, expedition travel, and use under waders or dry suits where moisture management is essential.
Designed as full-length bottoms, these longs feature reinforced knees, thighs, and crotch for enhanced durability in high-wear areas.
Classic Brynje 3/8″ open-weave mesh construction
4–6× the insulation of solid knits by weight
100% Schoeller® Polycolon® polypropylene
Virtually zero moisture absorption
Exceptional moisture vapor transport—nothing wet against the skin
Extremely lightweight with superior strength-to-weight ratio
Thermostatic performance for both cold and warmer conditions
Reinforced knees, thighs, and crotch for durability
Proven in military and expedition use
Ideal for extreme cold, hunting, and use under waders or dry suits
Material: 100% Polypropylene (Schoeller® Polycolon®)
Fabric Weight: Net 140 g/m²
Product Weight: 130 g
Sizes: XXS – XXXXL
Colors: Black
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