Aquatec is a thin breathable material which is sensitive and does not hamper rider dexterity. Aquatec uses any moisture to increase the palm grip. The skin tight fit allows the rider to do and undo small buckles and straps without the inconvenience of taking the gloves on and off. Measured across the fleshy bit of skin just under your four fingers. 7cm (size 7) is considered a medium womens size whilst 8cm (size 8) is considered to be a medium mans size. Ref: UTBZ1219