SmartKnitKIDS SeamlessUNDIES are perfect for kids with sensory processing disorder, or for those who just can't stand undies with seams. The patented form-fitting design of SmartKnitKIDS SeamlessUNDIES ensures that they fit like a second skin - they won't wrinkle or bunch. The top and leg openings of SmartKnitKIDS SeamlesUNDIES are also elastic band-free, which helps prevent the annoying and sometimes painful indentations on the legs and waist. Available in singles or 3 packs.