Altra lone peak 3.5 mens size 12.5 new in box NEVER USED New inbox never used any questions or more photos please ask. While the Altra Lone Peak 3.5 is technically a trail running shoe, they’ve made their mark in the thru hiking community as a lighter alternative to the standard hiking boot. Their heavily lugged sole gives comparable traction to many boots, and the FootShape Toe box found across all Altra shoes means that your feet can fully splay, keeping you more comfortable during long days on the trail. Add in thoughtful design elements like the four point gaiter trap and the quick drying upper, and it’s no wonder the Lone Peaks have become a favorite with hikers and trail runners alike.