Running, Ultimate Frisbee, Soccer, and playing Football. The flexible and breathable material allows easy breathing while keeping yourself warm. It can also be warn into the summer months for Motorcycle Riding, Four Wheeling and any other shenanigans you can think of. New Bandit 2 is Amazing!! Fully lined with No Pill Polar Fleece. Long in front just like Original Bandit. Back is sewn together. About 6 inches wide. Sizing is XS-18" around. S-20" around. M-22" around. L-24" around. XL-26" around.