J. Crew Sailor Mini Dress in Stretch Cotton Poplin Navy Brand new! A timeless mini inspired by vintage sailor styles. - This dress has our signature gold button details down the front (for all the nautical vibes) and a subtly flared skirt with a basque waist. Plus, it's crafted from our crisp cotton poplin fabric with a touch of stretch for a comfortable fit, all day long. 97% cotton/3% elastane. Back zip. Lined bodice. Machine wash. Fit-and-flare silhouette.