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Featuring an extreme max-cushion stack, an anatomic Original FootShape™ toe box, and Vibram® Megagrip rubber, the classic Altra Olympus 2 delivers trail protection and zero-drop stability.
Upper: Quick-drying trail mesh upper reinforced with protective synthetic overlays, abrasion-resistant toe caps, and an integrated GaiterTrap™ attachment system for technical trail debris defense.
Midsole Cushioning: High-stack dual-layer EVA midsole featuring an A-Bound™ top layer that sits directly under the foot to return energy and buffer sharp rocks.
Cushioning & Stability Technologies: Balanced Cushioning™ (Zero Drop™) platform places the heel and forefoot at equal distance from the ground (0mm drop) to encourage low-impact landing mechanics.
Outsole: Vibram® Megagrip sticky rubber outsole utilizing trail-specific lug spacing engineered for aggressive traction on wet, muddy, and steep technical terrain.
Original FootShape™ Toe Box: Extra-wide forefoot allows toes to splay naturally for maximum balance on unpredictable singletrack.
Vibram® Megagrip Compound: High-friction sticky rubber grips wet rock, loose dirt, and steep inclines with absolute confidence.
A-Bound™ Energy Return: Recycled foam top layer reduces ground shock while returning bouncy energy on every foot strike.
Maximalist Underfoot Shield: Massive EVA stack insulates feet and joints from harsh rock strikes during long trail runs.
Fits True to Size (TTS) with Altra’s roomiest “Original” FootShape fit. Offers maximum toe splay and volume for trail runners who prefer ultra-wide forefoot room.

1. Setup: Place a plain sheet of paper on a hard floor, flushed against a flat wall. 2. Position: Stand on the paper with your heel resting gently against the wall (wearing the socks you usually use for running/walking). 3. Mark: Mark the furthest point of your longest toe on the paper with a pencil. 4. Measure: Measure the distance from the edge of the paper (wall) to your mark in Centimeters (CM).
Recommended Fitting Margin:
Casual Shoes: Add +0.5 cm to your measured length.
Running & Outdoor Shoes: Add +0.5 cm to +1.0 cm to allow for toe movement and natural foot swelling during exercise.
FootShape™ Toe Box: Altra shoes are built with a signature wider forefoot design, allowing your toes to splay naturally for maximum stability and comfort.
Balanced Cushioning™ (Zero Drop): Places your heel and forefoot at an equal distance from the ground, promoting a natural, low-impact stride.