Size: S: (for palm width approx. 6.3 - 7.3 inches (16 - 18.5 cm); M: (for palm width approx. 7.3 - 8.1 inches (18.5 - 20.5 cm); L: (for palm width approx. 8.1 - 9.4 inches (20.5 - 24 cm); Note: Please measure the width of the palm width of the thumb and index finger around the circumference from the crotch of the side around the thumb. (Palm thickness is different from person to person, so you can measure it around for more accuracy! Applications: Great for protecting your hands while cycling, survival games, camping, mountain climbing, driving, batting, walking, and more.