SixSixOne 661 401 Chevron Full Finger Gloves - Bicycle, BMX, MTB, Downhill - Closeout/Blowout - 6730 SixSixOne 401 Chevron Gloves The 401 glove has synthetic clarino palm for durability and sensitivity. A perforated palm for breath ability keeps the palm cool and dry. It also has a terry cloth sweat wipe on the thumb. The 401 glove also has a slip-on design with a low profile cuff that wont snag. With the back of the being made out of a 4 way stretch material for a great fit and maximum comfort. Sizing Hand measurement should be taken around the fullest part of the hand, not including the thumb. If right handed, measure the right hand, and vice versa. This is for reference only. Glove fit can be a personal preference as you may prefer a tighter or looser fit.