Adjustable sizing S-XXL for US Men's clothing size.For airsoft & paintball & cosplay Only.Only for games. HIGH QUALITY & COMFORTABLE: Well made of 900D high density nylon,well constructed, strong tensile wear-resisting ability. ADJUSTABLE S-XXL: maximum chest size is 45 inches. be adjusted to fit max be adjusted to fit shoulder and waist size,Please pay attention to the size before ordering. Carry 3 standard magazine pouches ,1 map and flashlight pouch, 1 medic pouch,all bags are removable.