100% cotton. Heavyweight cotton twill fabric. Full button fastening. Chest pocket with buttoned flap closure. Two welted hand warmer pockets. Buttoned cuffs. Curved split hem. Embroidered brand patch. Regular fit. The Surchemise ML from the salty seadogs at Armor Lux is amongst some of the best heavyweight, overshirt-things weve gone eye to schmut with for a long time. Its made from some decadent cotton twill fabric…Benefits from a trifecta of handy pockets…And is constructed so stoutly that its sure to give you several lifetimes of unfaltering service.