Madewell Challis Wrap Midi Dress in Woodland Floral Size Small—Worn Once, Dry-Cleaned and in Like New Condition 100% viscose. 19" across the chest. 49" long. Made of supersoft (and sustainable) challis fabric, this floral-print midi dress has a V-neckline, wrap bodice and tiered swingy skirt. Easy on the body but so cute, you'll want to wear it all the time. Slightly oversized fit. Lenzing™ Ecovero M viscose. Do Well: made of Lenzing T™ Ecovero TM ', a sustainable fabric created with natural fibers and a more eco-friendly process. Machine wash