I haven't worn a one-piece snow suit since I was a toddler but this is so practical... it's very warm and ensures the snow is kept out from reaching a sensitive mid-section! I have not tried the backside zipper for easy restroom access according to the listing, but I appreciate that was considered.Used this suit for the first time this week when we went sledding and for the number of times I fell or rolled off the sled and got covered in snow, I stayed totally comfortable and cozy. There was a pretty strong breeze and I believe the temp was in the 20s F. The attached hood covers my head well even with a sweatshirt hood underneath. The only concern I have is that the boot protector sleeves (built inside the pants legs) aren't as tight of elastic at the cuff to stay over my snow boots and keep snow out. I did get some snow in my boots which are about 5" above my ankle. A suggestion would be to attach some small fabric hooks on the inside of the cuffs to help fasten to boots with laces (my Burton bibs have that and those work well and stay put). This suit is waterproof and I stayed dry!Love the bright color options! I like to be bright in the snow but good for safety, as well!For sizing: I initially ordered a small according to their size shart and reviews. It fit but felt tight around the hips and shoulders when bending over and I was worried that might end in a disaster some day too soon. It was also not roomy enough to wear sweatpants joggers and a loose sweat shirt underneath. I bought a medium and this is much more comfortable for me and feel much more secure moving around in. The legs are roomy enough for sweatpants versus leggings and I was able to comfortably wear a loose hooded sweatshirt underneath without feeling extra bulky. I did have to roll the pants up about an inch so they wouldnt drag under my heels. I returned the small and kept the medium. I recommend sizing up one size according to their size chart.For reference, I'm 5'2", 135lbs and size 28" in jeans. I typically fit in size medium consistently in tops and athletic/leisure pants.My daughter is 5' and 108lbs and fits perfectly in the x-small size! She got the black one and loves how quick it is to suit up for playing in the snow. Picture attached of her wearing it.Overall review: Excellent option for the price! Recommend sizing up one from their size chart for a roomier fit. Very warm and quality made, waterproof. Would absolutely purchase this again!