Madewell Women's The Rilee Denim Midi Skirt For when you don't have the heart to part with any of your jeans, this denim midi skirt is just like the one you DIY'd in the '90s. Crafted of 100 percent premium cotton denim, it has a slit at the front for easy movement (and the perfect touch of sexy).36" long (based on size 18).100% cotton.Do Well: By buying cotton products from Madewell, you're supporting our investment in Better Cotton's mission to help cotton communities survive and thrive while protecting and restoring the environment.