With fun colorways and an eco-conscious construction, what's not to like about Merrell's new Speed Solo Mid Waterproof Hiking Boot? We can wear them on easy trails and for urban hikes, thanks to their lighter, sneaker-like construction. We also like how the mesh lining, webbing, and laces are made with 100% recycled materials, the outsoles include 30% recycled rubber, and the BLOOM midsoles use 10% algae biomass for a greener construction.