The footpad has some padding, for warmth and comfort, and grippy printing on the underside. Add-on feet are designed to only be worn inside and are machine washable.
If you want them in another fabric/colour to the onesie you are ordering, please just add a comment to that effect as you checkout. Otherwise we will assume it should match!
Size XSmall is for shoe sizes 3-4; size Small fits shoe sizes 4-5; size Medium is for sizes 6-7; Size Large is for 8-9; and size XL fits feet shoe size 10 and up.