Sticky rubber is the key to your climbing shoes and the heart of our business. There are slight variations between the stickiness and longevity, but all of the rubbers we use are high performance climbing rubbers. If you do not specify a type we will use whichever rubber is appropriate for your shoes, however over time many people develop an affinity to one brand or another and it is not uncommon for us to resole one brand of shoe with another brand of rubber.