What I first noticed was the versatility of this product, in that your child can easily pull on the trainer just like a pair of panties, but thanks to the added feature of the snaps in the back the trainer can also be removed easily just like a diaper (except the snaps are in the back where you child can't get to them). This is a great feature allowing the trainer to be adaptable to children of different abilities and also great for when your child happens to not make it to the potty and leaves a *deposit* inside the trainer that would just make a mess when removal. At least with the snaps it is easier to remove the trainer without making a further mess!
As for sizing I struggled for a bit trying to decide which size to get for our daughter. That is until I found an awesome review on this very product at Change-Diapers.com. Maria had given all the measurements of the actual trainer and I was able to quickly use those to determine that for my 3.5 year old 26 pound child the small would be best, knowing that she was quite petite. The small fit her perfect and lasted through to her graduating to panties! For more average sized children I would definitely expect them to need a bigger size. You can find Maria's review here if you want more info on sizing, but the size chart below should help too!
Super Undies Size Chart
|2 – 3 yrs|
|2 – 5 yrs|
|5 + yrs|
*I was provided with the above mentioned product for the purpose of this review. All opinions are 100% mine and I only write reviews on products I truly believe in!