Release grooves in the midsole provide enhanced adaptability on rough terrain, while the Ballistic Rock Shield now includes vertical grooves for side-to-side adaptability. New DNA LOFT v2 technology is 20% softer and lighter than previous models. The midsole is made of 2 mm foam for added comfort. TrailTack rubber outsole provides wet traction, drainage vents allow water to escape quickly, and gussets keep out sand and small debris for high-performance performance on all trails and conditions.