I purchased this swim suit in a size 14 for my 10 year old daughter. It fit great. The bottoms are perfect and the top sleeve length is right at 27" from mid neck to sleeve. The top does have the cup lining and the fit is more loose but my daughter likes the tops a bit loose. For reference, my daughter is very slim and very tall. Her tops and waist are in between a standard size 8 and 10 but for length we go with 12/14.
Girls Heart Print Sweatshirt Top + Long Pantskirts 2Pcs Clothing Set Outfit - DDSOL Baby Pant Set
16 Review
Girls Long Sleeve Knit Cardigan Sweater School Uniform Button Tops
15 Review
Girls' Reversible Water-Resistant Puffer Jacket - Rokka&Rolla Winter Coat With Hood
17 Review
Stay Protected And Stylish With PHIBEE Girls' Short Sleeve Rash Guard Set - UPF 50+ Sun Protection And Two-Piece Swimwear
16 Review
Miaowoof Toddler Waterproof Thinsulate Mittens Girls' Accessories for Cold Weather
52 Review
Bememo 4 Pairs Fingerless Gloves Half Finger Mittens Solid Color Knitted Typing Gloves for Boys and Girls, Ideal for Winter
42 Review
Assorted Toddler Winter Mittens for Girls' Accessories
42 Review
Stay Cozy with Minus33 Merino Wool Midweight Gaiter - Perfect Cold Weather Girls' Accessory
49 Review