works: the LS.skinFoil summer evo7 Base Layer balances your body\'s climate while offering more protection from the sun\'s rays.. Working on their no-sleeve summer skinfoil, and listening to rider feedback Assos have create a long-sleeved version for summer. The beauty of the tubeless seamless construction is the close fit. Thanks to the extreme elasticity of the fabric this allows a regular fitting pattern to adapt easily to different body types.. This base layer has been designed to be the only next-to-skin garment which sits under your bib shorts and jersey. Working in combination with other Assos products, rider comfort is guaranteed and the garments work in conjunction with each other to wick away sweet and keep you cool. The long sleeves add extra protection from the sun\'s rays.