To repair my very leaky boots, I used one sachet of sugru for each boot. I simply divided each sachet in half and molded it over the holes in my boots. I thought about using black sugru for the repair, but I opted for the orange instead because I thought the contrast would look cool. Et voila! Boots ready to soldier on for the rest of the season, and hopefully into next winter as well. It only cost about $3 to fix them, far less than the cost of a new pair! Rhonda, Canada..