Random DIY idea- Can you sew at all? Take a sheet (or a fleece blanket) and cut a 1 foot wide strip, as long as you want. Sew it into a tube (12 inch circumference, length whatever you want). You can then sew one end closed or just tie a knot in one end, drop in a step, tie a loose knot above it, step, knot etc and you have your own DIY sausage-link style container that'll put two layers of fabric between each step. This step tube can be dropped into a bag (or even sew the bottom into the bottom of a bag ).
Or if you want to get real fancy you can cut slits in the tube for each step and sew individual pockets.
Edited to add- or perhaps use something MOLLE style and slide a step into each loop?
Or if you want to get real fancy you can cut slits in the tube for each step and sew individual pockets.
Edited to add- or perhaps use something MOLLE style and slide a step into each loop?