A caldera is a volcanic crater, a reminder of the explosive power of Mother Nature. So why in the world would you want to stick your foot in one? Well, for starters, the Brooks Caldera 3 has a unique aesthetic that's hard to resist, especially if you enjoy a cool palette of blue, gray, and navy. When it comes to functionality, this is a trail running shoe that can accompany you on fast but rugged treks. Lightweight BioMoGo DNA in the midsole allows for responsive movement while also protecting your soles. Lugs on the bottom of the shoe provide excellent traction, and water repelling features keep your feet comfortable and dry. These shoes have a midsole drop of 4mm and a weight of 9.3 ounces.