Rubber overboot. Comes with both right and left boot. Protects from chemical and biological contaminants. Fits shoe/boot sizes 8-14 in any width. Bottom of soles are textured for traction. These come with laces to tie the overboot securely to your feet. All of our chemical protective boot covers are NEW and in the original bag. The original instructions are also included. Can be washed and reused. These are genuine military surplus!