Alki'i 100% cotton Infant/Toddler Pants 2-Pack set, colors available (Sizes 12M-24M) 100% cotton this pack contains 2 pairs of lightweight pants, of same size and color elastic waist out seam is 14 1/2" on 12 months, 15" on 18 months, and 15 1/2" on 24 months while laying flat.