Description Fabric Sizing How It's Made Hailed as "the most comfortable bra on the planet", and we are in full agreement obviously. Reversible, so you get 2 options, a comfy racerback that doesn't pinch or restrict and no elastic band to squish your ribs. No inside support, but they are double ply. If you need significant support from your top, this may not be for you OR you may way to wear a bra underneath. Fresh Squeezed: 82% Recycled Poly/18% Spandex Check out our video size guide HERE