DEFEET UnDLite Sleeveless Top SM White BASE LAYER - Our lightest, thinnest women's specific cut base layer. Stretchy and forgiving, it's also the most form fitting base layer around. It can be used with the UnDShurt to make a two-layer core warmth piece, or used on its own as a minimalist piece. PERFECT FOR SPORTS - For cycling and running it is a truly versatile top. The UnDLite is extremely quick-drying with superior vapor transport to make the perfect undershirt for high temperature conditions. HIGH QUALITY  Made of DriLex fabric, this exceptional lightweight sleeveless top features low bulk and great durability for years to come. UN-D-SYSTEM - Layering properly for cycling, running and other aerobic sports is critical for comfort and high performance. This top feels so Lite, its like its not even there. SPECIFICATIONS - Composition: 56% Poly, 25% Nylon, 10% Spandex, 9% Flat Poly