Maybe the Assos SS. skinFoilSpringFalls7 Body Insulator has a handle that will tie your tongue in knots, but it's not actually that complicated if you break it down. Allow us: SkinFoil is Assos' name for its body hugging, temperature regulating baselayers, which are constructed with no visible seams to eliminate chafing and enhance mobility. A blend of nylon and polyester moves moisture quickly away from your skin, and the compressive fit helps support muscles to decrease fatigue. SS stands for, reasonably, short sleeve, which is pretty self explanatory, and SpringFall denotes ready the seasons in which the midweight skinFoil is designed to excel. Finally, the s7 suffix indicates that the skinFoil is part of Assos' newest line, which takes the already legendary Assos ethos to the next level.