"Soft foam" refers to a material that is squishy, light, and easily compressed. It is often used in cushioning or padding to provide comfort or absorb impact. Full definition
This brush is lightweight and the small handle makes it easy to hold, PLUS we've added a nice soft foam pad for even more comfort! (royaldesignstudio.com)
The changing pad is made of soft foam which makes your baby feel comfortable and the diaper changing time happier for him. (checkpregnancy.com)