A.
anwered by: canteau
Standard is the original one size fits all. 10" wide by shifters/brakes & 11" long. Used with or without lighter/thinner glove liners or fingers gloves.
Large is 10.5" wide by shifters/brakes, 12" long & has a 1" gusset (extra neoprene) on the inside & outside seam.
XL is 11" wide by shifters/brakes, 13.25" long & has a 1' gusset (extra neoprene) on the inside & outside seam.
Large & XL Mitts are designed to accommodate thicker/heavier gloves, but thin liners can be used also.