V-neck PRANA long sleeve tee for layering or post yoga. Sustainable organic cotton and recycled polyester. One of the best companies out there for performance wear and sustainability. Look at the side seams..how many companies match their side seams? Again I always promote packable items for weekend jaunts on luggage restrictive airlines, this baby meets the really packable standards, also could be hand washed & will dry in a flash! Pet & smoke free home Seller ratings are fabulous!