Bar Mitts offer these mitts for Shimano STI levers that have exposed shifter cables.Fits road bars with Shimano STI levers that have exposed shifter cables5.5mm neoprene w/nylon laminate on both sidesManufacturer"s recommend sizing the Mitts is based more on girth than hand sizeThe difference from small to medium is about 1" around the opening where your slide in, Medium to large is another 1" largerAttach to bars, easily installed and removed for temperature changesCan be used with regular cycling gloves of varying thicknessItem SpecificationsColorBlackGenderMen"sSizeLargeFinger StyleUnspecified