ECWCS Level 1 Base Layer Top Size:XS the Mestel A2B2E2 filter has

the Mestel A2B2E2 filter has a shelf life of approximately 10 years

100% waterproof materials that are rot/mold resistant

Blade Finish: Black Titanium Powder Coated

Cross-Back Shoulder Straps — Padded mesh with D-rings distributes weight across both shoulders

ECWCS Level 1 Base Layer Top Size:XS the Mestel A2B2E2 filter hasThe lightest layer in the ECWCS system. This silk weight base layer is built for high output activity in cool weather running, rucking, or any time you're generating heat but still need protection from the cold. Ultra thin jersey knit wicks sweat instantly while antimicrobial treatment keeps you fresh during extended wear. Features ECWCS Level 1 Lightest base layer in the military cold weather system Silk Weight Jersey Knit Ultra thin for minimal bulk