Base 4.0 Crew QuickBooks 1mm H & 23

1mm H & 23

Featuring a stem design that takes inspiration from Oakley® Razor Blade’s trigger stem but with a contemporary twist

SWAT team members and others who take their view of the world seriously

2% Spandex

unbelievably soft to the touch

Base 4.0 Crew QuickBooks 1mm H & 23UA Base 4. 0 is a men's baselayer built for extreme cold weather and lower activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes. UA Base 4. 0 is our warmest yet, locking in your body's heat to deliver extreme warmth in the extreme cold UA Scent Control Technology to keep you undetected in all pursuits Soft, brushed grid interior traps air against your skin,