I've got 2 pairs of Boreal Ninja Junior climbing shoes for my kids, both pairs bought 2nd hand.
On one pair, the rubber is the normal, sticky-feeling texture that you expect on them.
On the other pair, the rubber has gone shiny and feels almost slippery in your hands.
Any suggestions for treating this and re-surfacing them, before I try a wire brush and/or lighter fluid? Ideally, something I can easily do before we need them at the weekend!
There's really no point paying to have them re-soled.