Bought several of these tanks & realized the fit was too small after wearing one - so selling them all so they can be put to good use. From Vuori site: The Tradewind Performance Tank is the most technical tank in the lineup, with perforated performance knit, UPF and quick-drying capabilities. Light and breathable, the flatlock seams and chest pocket allow for easy transition into everyday life. Great for yoga, training and running. Anti-Odor Moisture Wicking Quick-Drying 4-Way Stretch Breathable, perforated performance recycled knit. UPF 30+, lightweight, quick dry & anti chafe seams Modern athletic fit