79% cotton/20% TENCEL™ lyocell/1% Lycra® spandex. By buying cotton products from J.Crew Factory, you're supporting our investment in Better Cotton's mission to help cotton communities survive and thrive while protecting and restoring the environment; this product is sourced through a system of mass balance and therefore may not contain Better Cotton. All-day stretch fabric: low stretch, with an easy feel and a little bit of give. See pictures for measurements