As to avoid the inevitable landfills busting at the seams from the hordes of climbers disposing of their inferior shoes, Mad Rock has introduced the Mad Resole Kit. Now you can get some performance out of those old beaters before sending them of to their final resting place and getting a pair of Mad Rocks. Our earlier attempts to recycle other brands of shoes failed when our Mad scientists quickly discovered none of their components met with our stringent quality and performance standards. Pre-ground, brushed and precut soles standard 4.2mm shape in Formula # 5 rubber. Package comes with one complete pair of soles, adhesive and instructions.