This revolutionary new sole design is an industry-disrupting advance in wet rubber traction. The Michelin Outdoor Extreme outsole offers 25% better abrasion resistance and a resounding 43% improvement in wet rubber traction over the competition. Using Michelin tire geometry, it offers a wider footprint for stability, a higher ratio of surface contact, and a lug pattern that reduces shock and improves pressure distribution. The two-layer midsole has a co-molded ESS plate that provides improved stud retention and torsional stability. Starting in 2021, shock-absorbing BLOOM® Rise algae midsole provides “river feel” and algae technology cleans 114 liters of water per pair of boots.