Ready for life in the fast lane. These U.S. Military DriFireA(R) Briefs upgrade your daily comfort to handle any adverse conditions that come your way. DriFireA(R) fabric has moisture-wicking, odor-controlling, flame-resisting properties built right in. Smart-fit athletic design moves with you, never against you. Made to the strictest U.S. military specs, these are like no underwear found on the civilian market. 6.5 oz. DriFireA(R) Prime lightweight FR fabric 4-way stretch for high-activity comfort Offset flatlock seams Smart-fit athletic cut Moisture-wicking, dries 3x faster than cotton Odor-resistant Berry compliant Machine wash and dry Note: May have black waistband. No choice