ZEPHYR MK2 GTX MID Men/Tops/Thermal Shirts Includes advanced sleep monitoring with

Includes  advanced sleep monitoring with REM sleep and can gauge blood oxygen  saturation levels during the night with the wrist-based Pulse Ox² sensor

and a continuous zipper and hood  baffle

Two-button adjustable cuff

Rugged 70D Nylon body

Proudly  of thick and sturdy cotton duck

ZEPHYR MK2 GTX MID Men/Tops/Thermal Shirts Includes advanced sleep monitoring withFormerly the ZEPHYR GTX MID, the ZEPHYR MK2 GTX MID builds on the trusted original with enhanced durability and technical performance. Key features include a dual density PU midsole for heat and cold insulation, a tear resistant split leather Cordura upper, a locking ankle eyelet, integrated lace holster, instep protection for fast roping, and a slip , heat , and fuel oilresistant outsole. EU PPE certified. Durably waterproof and breathable. Duty Boot