The Brooks Caldera 8 Trail Running Shoes are ultra-cushioned and built for adventure, offering enduring comfort, plush cushioning, and an adaptable ride for long-distance runs. Key Features: - TPEE Air Mesh Upper: Provides optimal ventilation, flexibility, durability, and abrasion protection, keeping feet cool and dry. - Perforated and Padded Tongue: Enhances comfort and breathability. - Raised Sidewalls: Add security and flexibility. - TPU Toecaps: Protect toes from rocks and uneven surfaces. - Heel Pull Tabs: Assist in putting the shoes on and off. - Traditional Lacing System: Locks the midfoot for a secure fit. - DNA Loft v3 Midsole: Features super soft cushioning infused with nitrogen for lightweight durability and shock absorption, reducing impact on joints. - TrailTack Green Rubber Outsole: Offers optimal grip and traction, even on wet surfaces, with multi-directional lugs and made from 25% recycled materials. - Wider Base: Increases stability for smoother transitions. - Flex Grooves: Enhance flexibility for better grip and traction. - Lug Depth: 4mm. - Heel: 38mm. - Forefoot: 32mm. - Drop: 6mm. - Weight: 301g.