Sheave: 21 mm

Rigourous testing to demonstrate our products meet and exceed industry benchmarks for durability

A draw string bag for holding your demand valve and elastic loops for airways

Its updated fit includes an insert collar

Since it is the lightest structural NFPA 1971 compliant helmet

Under Armour Men's UA Tactical Tech Short Sleeve Size:Medium Sheave: 21 mmUA Tech is our original go to men's training t shirt: loose, light, and it keeps you cool. It's everything you need. Product DNA Loose: Fuller cut for complete comfort. Lightweight UA Tech fabric with an ultra soft, natural feel for unrivaled comfort Material wicks sweat & dries really fast Anti odor technology prevents the growth of odor causing microbes Smooth, chafe free flatlock seam construction 100% Polyester Imported