The Slim-Fit Jean is made of premium, midweight denim that feels substantial but has a touch of stretch for comfort. Its made of our cleanest denim fabric yet.**This jean is made of organic cotton and Roica V550 yarni.e., the first stretch yarn worldwide that isnt made with harmful chemicals and that has achieved a Gold Material Health Certificate from Cradle-to-Cradle Product Innovation Institute, as well as Hohenstein Environment Compatibility Certification. This innovative material, along with the use of safer dyes and recycled trim, has allowed us to be one of the first companies to make stretch denim that is cleaner for the planet.