Perfect for anyone working on a bicycle, motorcycle or car, the Mechanics Gloves are designed to offer the hand total 360 degree comfort and protection against most cuts and scratches with minimal impact to dexterity. Gone are the days of taking the skin off your knuckles when removing a difficult to remove bolt or pedal! To find your size, measure the circumference around the knuckles excluding the thumb - your hand should be open with the fingers together. Â Size guide: Small = 7.5 - 8" (19 - 20cm) Medium = 8 - 8.5" (20 - 21.5cm) Large = 8.5 - 9" (21.5 - 23cm) XL = 9 - 10" (23 - 25cm) XXL = 11" (28cm)