SUGOi Apparel Size Chart This incredibly soft and comfortable zip top provides lightweight warmth and moisture wicking performance. Its Dri Active Core construction is soft and stretches for mobility, with flat seams to prevent chafing. Great worn on its own or layered with a jacket. Features: - Dri Active Core is a soft lightweight four way stretch knit fabric for incredible comfort - Flat seams for increased comfort and abrasion resistance - Back side pocket with invisible zip and internal media cord access - Fabric: Dri Active Core (90% Polyester 10% Spandex)