I'm Selling these Neos Overshoe xl boots you can put them over your Sneakers from a size 11-13 maybe 14 without a problem there's 16 screw holes in the Soles you can screw in bolts with the tool I've 16 extra spikes you can use there extremely comfortable and safe you can run across black ice without slipping I've had these for years and barely worn them I just got another pair and figured I'd sell these there Lnwot except for the box has gotten in a lil rough shape over the years. it's hard to find these in a Xl especially for a decent price Reasonable Offers Welcome if you have Any Questions Please Ask I'll Respond Asap