ET 3000 Yoga Black is comprised of 84% REPREVE Recycled Polyester, 16% Spandex and contains 20.9 recycled 500ml water bottles per linear yard.. It is inherently treated with Sorbtek, Unifi’s moisture management system. ET 3000’s REPREVE certification number is RPV-3056 and Sorbtek certification number is SRB-1248. This fabric is ideal for “green” yoga pants and swimwear. It was tested for Ultraviolet Protection Factor (UPF) under AATCC 183, and gives excellent UV protection, blocking 98%+ of UVA and UVB rays. The UPF value allowed on garment labels is 50+. Hangtags from Unifi, the manufacturer of REPREVE, stating the material is made from recycled plastic bottles are available upon request. Click the button below to request a sample of ET3000 Yoga Black.