I felt that these fit well, provided good leak protection and are a more affordable choice than many one size diapers on the market. The absorption is customizable, but I do not know how well more than two inserts will fit or function in the sleeve since it does need to agitate out. I only received one of their inserts for this review, but I tested it with additional soakers for my toddler, and two inserts did agitate out in the wash.
You should also note that the price per one size diaper only includes one insert, so take that into account when doing price comparisons; however, at $1.95 per additional insert it still beats most of the competition when it comes to price. The inserts do need to be purchased in packages of 10, however, so if you need more than 1 insert per diaper, it is the most economical if you have a handful of these diapers. My only disclaimer for my review is that my toddler typically needs more than one insert and non-Smartipants inserts were used as the second insert at times during this review, since we were only provided 1 insert with our review diaper, although we used it with the single insert as well.
Overall Rating: 9.5
Closure Style: Snaps, two on each side, horizontal with crossover.