Road Trail Run: Altra Running Instinct 4.5 Review: A Heavier Trainer with Sublime Upper Comfort and Room, over a Lively, Firm Base
Altra Running - The original neutral do-it-all shoe with new and exciting upgrades. A decoupled heel promotes a soft landing while extra rubber wraps up to protect your toes. A modernized upper
![Road Trail Run: Altra Running Instinct 4.5 Review: A Heavier Trainer with Sublime Upper Comfort and Room, over a Lively, Firm Base Road Trail Run: Altra Running Instinct 4.5 Review: A Heavier Trainer with Sublime Upper Comfort and Room, over a Lively, Firm Base](https://2.bp.blogspot.com/-0Gv6SyzUVCw/Wma4WshGD-I/AAAAAAAAyQI/BtQjqzIy024HrHehsaped9C7IO6-yfhXACEwYBhgL/s1600/MVIMG_20180122_172733.jpg)