The Massif® Inversion base layers are engineered with an advanced tri-blend yarn system that provides unparalleled performance across multiple environments. This special blend plus the addition of spandex generates improved range of motion, superior comfort, and extraordinary recovery for after-wash durability with no unsightly “bag outs.” Sweat is rapidly wicked away from your body through a premier moisture-management system scientifically engineered for fast dry times. This results in a highly breathable garment that allows you to fully focus on your mission. To top it all off, industry-leading pill resistance combined with an advanced antimicrobial platform significantly boosts long-term wearability.Product Features: Flame resistant Superior hand Premier moisture-management Outstanding stretch and recovery Industry-leading pill resistance Ultra-fast dry times Antimicrobial Specifications: All fabrics pass the stringent ASTM D6413-F2302 performance specification for flame resistance Product Downloads Inversion Base Layers Size Guide