Not just another cotton program: Kryptek's CVC Twill is durable, soft, and is the ideal weight for all around function. Taking design to the next level we have concentrated our effort to have the best fitting shirt on the market. All pocketing is placed to be convenient access, functional design and keeping a very clean look. All styling is updated, fabric has low shrink and great colorfastness.Sizing ChartSmall - Chest: 35-37 ; Sleeve: 32.5 ; Waist: 29-31 ; Hip: 34-36Medium - Chest: 37-39 ; Sleeve: 33.5 ; Waist: 32-34 ; Hip: 37-39Large - Chest: 40-44 ; Sleeve: 34.5 ; Waist: 34-36 ; Hip: 39-42XL - Chest: 44-47 ; Sleeve: 35.5 ; Waist: 37-39 ; Hip: 44-46XXL - Chest: 48-51 ; Sleeve: 36 ; Waist: 40-43 ; Hip: 47-49