420 theme Men's Mountain Bike Jersey 3/4 length sleeve loose fit 3/4 length sleeve and a loose fitting casual style. The loose fit on this mountain bike jersey provides great mobility while on the trail while still providing ample room for protective gear. The jersey also features a flat V Neck collar which provide a great fit. Like most jerseys this mountain bike jersey is constructed out of dry sport polyester. The breathable light weight fabric works to wick moisture away from the skin to keep you dry and cool on those hot days out on the trail. The jersey has no elastic on the waist of cuffs and no pockets. Its perfect for use with a hydration pack.