My husband uses these for ice fishing and says they work great for that.  This is his second pair as he lost one when walking thru deep snow.  He says get the STABILicer Powder Straps as he ended up doing if you think you will find yourself in walking loose snow.  Very good traction for ice fishing and easy to walk in he says.  His first pair were mediums and while they fit his Size 8.5 hiking boots well they did not fit his size 9 Muck boots well - too small.  this is what led to the lost cleat.  The second time around he purchased the Large cleats and they are perfect for his size 9 Muck boots.