What do you get when you improve on the already adventurous Superior? A lightweight, lightning-fast shoe you can trust on any trail. This certified speed-seeker is trail-ready with a MaxTrac sticky rubber outsole, the lightweight and responsive Quantic midsole, and the improved upper that's more locked-in and durable. Throw in improved breathability, better drainage, and a removable StoneGuard, and the Superior 4.5 is ready to blaze trail like never before.