Altra Mont Blanc Carbon is a trail running shoe designed for fast, technical terrain. It pairs a full-length carbon fiber plate with a sticky Vibram outsole for propulsion and grip on challenging trails. Key attributes: White | Black | Fiery coral | Sandwich mesh; Ripstop nylon | Zero drop (0 mm) for natural footstrike | High cushioning for long distances | Breathable upper | Vibram® Megagrip outsole for wet/dry traction | Lightweight construction (309 g) | Lace-up closure | Rock plate for underfoot protection | Dual-compound midsole (rim/core) for responsiveness | Full-length Carbitex™ Monoflex carbon plate | TPU overlays and microsuede heel cage | Ankle-height trail silhouette | Lace-up closure | Dimensions & fit: Heel-to-toe drop: 0 mm | Stack height: 29 mm | Weight: 309 g | Support: Neutral | Cushioning: High | FootShape: Standard | Best use: Trail racing and technical trail running | Fit notes: Roomy toe box (FootShape) | Composition & care: Forefoot: high abrasion-resistant sandwich mesh with TPU overlay | Heel: ripstop nylon with microsuede cage | Midsole: Altra EGO™ MAX (rim) and Altra EGO™ PRO (core) | Plate: Carbitex™ Monoflex carbon plate (full-length) | Outsole: Vibram® Megagrip with Litebase