Fits my son very well. Not too snug.
The underwear included in this pack are very sturdy, and I expect them to hold up well. I also expect them to soften a bit with washing and wear. The colors are bright, and my son loves the characters. I always think underwear in overpriced, but this pack is typical in price compared with others of similar style.
This item is so worth buying. I recommend this to any parents out there who have son(s). Material is perfect. My son loves it. Will buy more with other characters.