The Brooks Caldera 8 Trail Running Shoes offer ultra-cushioned comfort and an adaptable ride for long-distance runs. Featuring a TPEE Air Mesh Upper for optimal ventilation and durability, and a perforated, padded tongue for increased comfort and breathability. The shoes have raised sidewalls for security and flexibility, with TPU toecaps to protect your toes from rocks and uneven surfaces. Heel pull tabs assist in easy on and off, complemented by a traditional lacing system for a secure midfoot lock. The DNA Loft v3 Midsole provides super soft cushioning infused with nitrogen, offering a lightweight and durable feel that lessens impact on your joints. The TrailTack Green Rubber Outsole, made with 25% recycled materials, ensures outstanding grip and traction on various terrains, even on wet surfaces. It features a wider base for smooth transitions and flex grooves for enhanced flexibility and traction. Key specifications include a lug depth of 4mm, heel height of 38mm, forefoot height of 32mm, and a drop of 6mm, with a total weight of 301g.