Adidas Terrex Skychaser 2 - excellent choice for light and fast alpine climbing, hiking, ultralight backpacking, and thru-hiking because of the 1 piece Continental rubber sole and TPU rock plate - Adidas BOOST foam midsole - at least 50% recycled materials 2 sizes available: 8.5 & 9 Both brand new, in box, never worn I bought these for a summer of bagging peaks but plans change sometimes 🤷🏻‍♀️ and that’s ok.