Attention! We chose high tech cycling clothes with a body tight fit. Do you prefer to wear your clothing not too tight? Then definitely take one size bigger! This cycling shirt is made of Lycra which moves in 2 directions for maximum comfort. The back panel on the other hand is made of Lycra that moves in 1 direction to make sure the jersey always stays in place. Thanks to the mesh side panels your body temperature remains stable during cycling even in warmer weather.