The front and back are made of sesia micro mesh a fabric that is soft supple and incredibly breathable making for a jersey that feels barely there the sleeves are in arctic lycra both light and elasticated with inner silicone on the hems to allow a snug fit and to ensure maximum comfort and freedom of movement a full length front zip allows for maximum ventilation on your hottest and hilliest of rides in the back a large triple pocket is perfect to store everything you need and the re