The Brynje Original Super Thermo (ST) Mesh Shirt is engineered for the most demanding environments and highest-output activities. Constructed from 100% Schoeller® Polycolon® polypropylene yarn, this base layer features Brynje’s classic 3/8″ open-weave mesh, delivering 4–6 times the insulation of solid knit fabrics by weight while keeping moisture completely off the skin.
Polypropylene absorbs virtually no moisture, and the open mesh structure allows perspiration to pass through the garment in vapor form—eliminating the clammy feel associated with wet base layers. The result is superior warmth, outstanding moisture management, and ultra-lightweight performance in both cold and warm conditions.
With an exceptional strength-to-weight ratio, Super Thermo garments are built to withstand years of extreme use. Trusted by expedition teams and Special Forces units worldwide, the ST Mesh Shirt excels in environments where sweat and moisture can quickly become a liability. A solid knit shoulder inlay adds comfort under pack straps and makes this shirt an excellent choice for wear under dry suits.
Classic Brynje 3/8″ open-weave mesh construction
4–6× the insulating power 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 high strength-to-weight ratio
Thermostatic performance for both cold and warm conditions
Solid knit shoulder inlay for comfort under backpacks
Proven in military and expedition use
Ideal for severe environments and high-intensity activity
Material: 100% Polypropylene (Schoeller® Polycolon®)
Fabric Weight: Net 140 g/m²
Product Weight: 130 g
Sizes: XXS – XXL
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