Fluid JacketMade for movement, the Magma Fluid Track Top is made from medium weight soft feeling fabric with sweat wicking and odor repelling technology. Bi way stretch material, raglan sleeves, and side panels make it the ideal jacket for any workout. This jacket features a full length semi automatic zipper that locks the zip in place, a zipper guard for chafe resistance and comfort in the neck and chin, and front pockets that fit all your essentials. Size &fit