BY.DYLN April Midi Dress in Black. - size S (also in XS) BY.DYLN April Midi Dress in Black. - size S (also in XS) Self 1 & Lining: 95% nylon 5% elastane Self 2: 90% nylon 10% elastane. Made in China. Dry clean only. Detachable bodysuit lining with gusset snap button closure. Hidden back zipper closure. Adjustable shoulder straps. Lace fabric overlay with boned bodice. BYDR-WD21. DL003. BY.DYLN dresses the open-minded, strong, and independent woman who isn't afraid to push boundaries. Not one to be conventional, her expressive style gives off a bit of teasing attitude. Core track essentials, signature ribbing, slouchy 90s cuts and form-fitting silhouettes make up BY.DLYN's collection, all rooted in the brand's DNA: feminine designs with a touch of masculine energy.