J. Crew Swingy Swim Cover-Up Dress Black Size Medium "Our easiest cover-up to date with the swingiest, most relaxed fit (read: we actually recommend sizing down). Plus, it's unlined which means it's slightly sheer and ideal layered over your favorite bikini. This dress is made with organic cotton that is grown without chemical fertilizers and pesticides from non genetically modified seeds." Details - 100% cotton - 3/4 length sleeves with elastic cuffs - Oversized - Buttons on the front - Lightweight