tt wrist office mkii pouch irr stone grey olive Tactical equipment IP67 certification provides a dust tight IP67 certification provides a dust tight and waterproof seal: the contents stay dry even in heavy rain or when the case is dragged across wet ground with a 25 mm bridge and 120 mm temples: compact dimensions that sit comfortably under helmets and headwear without protruding compatible with most compact models without a case The body is made from CORDURA 700D in 100% polyamide — a fabric that balances abrasion resistance and weight better than lightweight ripstop: it handles daily use without absorbing water in light rain or giving way at the seams under tension