Rockeroo Boutique Its My Birthday Bitches Rhinestone V Neck Short Sleeve Tee Shirt THIS IS NOT A PLUS SIZE SHIRT Sizes: Small fits size 2.4, Medium fits size 4-6, Large fits size 6-8,1X fits size 10-12, 2X fits size 14-16, 3X fits size 16-18 . Size Up if you are unsure of what size you need