My folks purchased this base layer for my 5 year old son for Christmas this year. He is a kid that wants to be cozy ALL the time, and is often chilled with just one layer of pants during the winter. He hasn't taken these off since he received them for Christmas and has been warm and toasty wearing them under his snow pants while playing for hours in the snow. He loves how soft they are, and just doesn't want to wear anything else since he first put them on! They are beautiful quality, and best of all, I love that they will grow with him for the next couple of years due to the roll-down waist on the pants and the folds at the ankles. He is a lean kiddo, of average height, and I am definitely glad that I ordered the size 6-8, as they fit him perfectly with the waistband and cuffs folded. Now my daughter (8) is also dying for a set. I would highly recommend these! They are worth every penny, and the colour combinations are just gorgeous.