Carter's Baby Cotton Pants/Leggings vs Simple Joys by Carter's Baby Girls' 4-Pack of Pants

At roughly $4-5 per legging in the Simple Joys 4-pack versus $8-11 per pair in Carter's mainline, you're looking at a 2x price gap for what is essentially the same brand's DNA. When kids outgrow clothes in a matter of weeks, paying double per pair is hard to justify unless you're getting something meaningfully better — and in basic cotton leggings, you're not getting that much more.

Carter's mainline has a longer track record with parents navigating tricky sizing — bigger babies, taller toddlers, kids with diaper bulk. Simple Joys uses the same general Carter's fit, but parents on Reddit specifically call out Carter's mainline when hunting for clothes that actually stay up and cover the belly. If your kid is anywhere outside the average size range, the mainline gives you more options to dial it in.

Simple Joys ships in solid or simple coordinating colors, full stop. Carter's mainline offers prints, patterns, and more visual variety in a single pack. This sounds trivial until you're trying to put together an outfit for daycare photos or a family event and every pair in the drawer looks identical. For parents who care even a little about what their kid wears, the mainline wins this one easily.

Neither product solves the biggest functional gap in children's leggings: cotton with no spandex blend means limited stretch, no moisture wicking, and fabric that can feel stiff after repeated washing. If your kid is active, sweaty, or in a phase of intense physical play, both of these options will fall short. This is a category-level limitation, not a differentiator — but it's worth knowing before you buy either one.