From Website: Your invite to be comfy and look cool has arrived. Our Tencel Rib Knit Tank Midi Dress is made from Tencel™ fabric, so it's soft, has plenty of stretch, and is more sustainable, too. With its sleeveless design and midi length, we predict tons of outfit possibilities. Materials: 91% Tencel™, 9% Spandex Fabric is soft, stretchy, and ribbed TENCEL™ Lyocell fibres are extracted from sustainably grown wood using a unique closed loop system which recovers and reuses the solvents used, minimizing the environmental impact of production. Unique physical properties lead to their high tenacity profile, efficient moisture management and gentleness to skin. Its softer, more breathable, and uses 10-20 times less water in production when compared to cotton This dress has a small defect. As seen in photo a patch of the fabric is pilling which gives it the appearance of being lighter in color.