NWT Rag & Bone Soleil Rib Bra Top Pale Copper, T-Strap Back, Knit Bralette Sz L Fit, fabric and functionality. This tank top checks all the boxes.T-strap back. Stretch knit fabric. Materials - 68% Cotton, 30% Nylon, 2% Spandex. Dry clean only. Item not sold as set The Soleil Rib Bra Top is made for the sun. Lightweight and slim-fitting, this T-back bra top has a deep V-neck and cami-crop, with half cardigan stitch and rib fashioning. Perfect for warm days or as a layering piece with other Soleil pieces.