Pottery Barn Rustic Forest Bath Mat Made of 100% cotton. By choosing our cotton products, you’re supporting our investment in Better Cotton’s mission. This product is sourced via mass balance and therefore may not contain Better Cotton. Bathmats- Tested over 10 wash cycles for shrinkage, overall appearance, accelerated ageing, heat resistance and colorfastness. Overall: 21" w x 34" l Thickness: 0.5"