What a long-sleeve run top should be. Silky-soft but still substantial, so there's no showthrough. Micronylon knit with spandex moves with us and gives us a fit that is loose without being sloppy. Plus as the days get colder, the Paradigm is our first choice for a wicking base layer. Only at T9. Web only. S(6-8), M(10-12), L(14), XL(16)