S=US 4-6,M=US 8-10,L=US 12-14,XL=US 16-18. Casual loose style, if you are between two sizes and have a large chest choose larger size, if not go size down. Tips: All the colors have upper body lining, white/purple/light yellow are fully lined Features: Classic solid plain color, puff/lantern sleeve dress, chic flounce sleeve, casual elastic high waist, cute layer ruffle hem, sexy high split design, The off shoulder maxi dress greatly show your charming shoulder and your delicate collarbone This flowy maxi dress is made of soft, breathable and skin friendly fabric, makes you more stylish, the elastic-smocked waist dress shows the body curves.This long sleeve a line swing maxi dress is very versatile, whether pair with high heels or jackets, It's your perfect companion Great for casual, daily, party, holiday, cocktail, date, wedding, beach trips, vacation, prom, cocktail, evening, club, nightclub, bar nightout, club, etc. You can also wear this fashion bohemain dress to embrace warm fall with your coat Washing Care: Machine wash with laundry bag recommended, hand wash in cold water, do not bleach, do not tumble dry, just hang or line dry. Vacuum packing, better to iron on low before wearing