The idea for the castelli boa winter glove came in the ridiculously cold and rain soaked 2014 milan san remo castellis pro riders had numb hands and couldnt get their gloves on or off to eat or to change jackets or gloves se they worked with boa to make a glove thats easier to open up and thus easier to get on and off castelli built it with outdry technology for waterproofness and made it come high up the wrist so your sleeve can completely cover it the easy onoff is also handy when you