Kate from See Kate Sew shows how to make wipeable portable changing mat. It’s made from a wipe-clean oilcloth (you could also use laminated cotton), with layers of batting and cotton underneath for padding. It folds up and snaps into a small rectangle, with a strap for easy carrying.
Click below for her tutorial:
Wipeable Foldable Portable Changing Mat Tutorial (with snaps!) by See Kate Sew
[photo from See Kate Sew]