These are actually pretty great! They fit just like bike shorts except swim edition :) and long enough to feel substantial. Bought the 3 for a just turned skinny 5 and realistically could've swung the size 4.loved it. great material e perfect size.This swimsuit shirt is amazing. My kids are very fair complected and we live in the south so sunburns are almost inevitable. These tops have saved me so much money on sunblock and time worrying about sunburns. Great for clumsy kids at the river as well, helps protect against any rocks. Cute pink color the girls love. Fits nicely easy to get on and off. Very pleased with this item and highly recommend.This BAOHULU Girls Long Sleeve Rashguard Swimsuit is for some reason titled for girls but I think that the cut and navy blue colours are unisex and would be a good fit for any child.It seems to be nicely made, the fabric is comfy and has a good stretch and the long sleeves do provide good coverage and protection from the sun.I do think it is a bit on the tight side and would suggest to consider sizing up if your child may be between sizes.At $17.99 while writing this review it is not the cheapest for a brand I haven't heard of but it is a good piece.I hope you find this review helpfulThe BAOHULU Girls & Boys Long Sleeve Rashguard Swimsuit One Piece UPF 50+ Swim Shirt I'm a fan of.It shipped well. There was minimal packaging to get rid of. The set emitted no weird odors or chemical-like smells.My daughter is average in size and typically is wearing a size 5-6. That said I got her the 5-6 sizing and it fits her with some space for growth. It is a little long on her torso and the sleeves are only a couple of inches longer than where her wrist end. I figure in a couple of months with growth it will fit her even better.The material is very good. The pink color is bright and not dull in the least. There are no loose strings, off seaming or other poor construction issues to speak of. It is holding up well with a cold wash and let hang to dry.There is a tag at the neck but it doesn't seem to bother my child.It is great for protecting my daughter partially from the rays of the sun offering UPF 50+ fabric that blocks 98% of the sun rays.Recommended!This item is true to size and is a good quality fabric with great stitching.What I really like about this is that is long. It’s not short and wide like a bunch of kids clothes can be. My child wears 5-6 in girls and this is a bit long on her arms and torso so it will last her for another year.