We have tested them with muck boots wellingtons and gardening shoes as well as our regular shoes and walking boots.
Here is what we have found for sizing:
good for shoes UK4, UK5, UK6
good for MuckBoots UK4
good for shoes UK7, UK8, UK9, UK10
good for MuckBoots UK5, UK6, UK7, UK8, UK9
good for shoes UK11, UK12
good for MuckBoots UK10, UK11, UK12
Please email or phone us if you would like advice on the correct size for your boots or shoes.
See our Yaktrax Pro demo movie
Muck Boots for working, walking and gardening