Craft designed the Active Extreme Crew Long Sleeve to keep you dry and comfortable 100% of the time. The elastic fabric stays in contact with your body, pulling excess moisture away from your skin while simultaneously keeping you warm. Six-channeled fibers against the skin accelerate moisture transport, cooling the body down, while hollow fibers on the outside offer insulation as well as moisture transport to the next layer. Thin, lightweight, and extremely elastic, this baselayer features a seamless torso to fit under a jersey perfectly. Active Extreme is odor resistant and keeps the body fresh during intense workouts.