Baby one Z is offered in 3 100% cotton sizes, color specific to each size. Brand new, just like baby! Adorable and functional, this item helps to offer something for everyone. They are light weight and durable, I pick the heavier weight oneZs with more stretchability so they can grow and last. They come with diaper buttons and are very similiar to what we've always had, just better. When you see what we've done, you'll love it! Mini service mark is discreetly centered on the garment. All items come with Money Enterprises $ official tagging. SM always means service mark(logo).