evo.com | BlackStrap Long Underwear Tops > The BlackStrap Summit Crewneck is your all-season ticket to chasing lines and staying warm without the bulk. This perfect first layer features a custom drop hem, vented pits, and thumb holes to keep you dialed for movement while holding in the heat when the weather turns. Versa Fabric 88% Polyester, 12% Spandex Flatlock Stitching Raglan Construction Regular Fit Ventra / SpectraUV / DriFlo | Women's BlackStrap Summit Crewneck 2026 - X-Small Purple | Spandex/Polyester