U. S. Patented Design D881, 511 S. Kontour design gloves conform to the natural shape of the human hand and provide proper finger alignment. Kontour thumb design moves the pesky seam away from the contact/wear area. Durable, supple genuine grain leather palm. Reinforced palm & index area for added durability. Snap button closure to limit debris entry. Unique pull-strap & elastic back combo - Can't use the pull-strap, just cut it off. Complimentary 3in carabiner for keeping gloves together when not being used.