Altra's Timp 5 gets the BOA PerformFit lace system treatment. The quick-dry airy mesh upper houses a roomy toe box which allows for a natural fit, while EGOMAX foam cushions the midsole. Underfoot, a Vibram Megagrip outsole keeps you grounded on both rural and urban environments. This shoe is built for trail running and hikes, featuring a BOA lacing system for easy on-the-go adjustments. The black upper ensures comfort in all conditions, while the BOA PerformFit Wrap lacing system lets you adjust as much as you need. An Altra EGO MAX compound within the midsole is ready for tough terrain, and the Vibram Megagrip outsole offers unparalleled grip on wet and dry surfaces, providing confidence to your run. Textile & Synthetic Upper/Synthetic Sole.