NBC rubber overboots, Falklands issue. Priced per pair.

These 100% waterproof overboots can be worn over most types of footwear. Good grip sole in muddy conditions, ideal for festivals, camping/'glamping', working in wet muddy conditions, etc. Can also be used as motorcycle waterproof overboots, depending on the toe clearance for the gear change. Ideal for scooter riders who need something quick to put on over their shoes or boots.

Still brand new in packets. Ideal for mud, snow and rain. Goes over any size boots. Excellent military issue.
Note: these are one size fits all, adjustable with the laces.