Having a proper-fitting running shoe goes a long way when you are running long distances. This key reason is why we engineered our footwear the way that we did. It is imperative to have a proper fit for your feet to run as natural as they are able. When going around barefoot there is no constraint on the foot. The toes splay, the foot relaxes and more power is put into the muscles.
To maximize the benefits of Altra Footwear, we encourage you to follow these fitting suggestions:
By following proper fit and footwear you then let your body do what it is naturally inclined to do. There is no need for additional stability, supports, airs, gels, shocks, or the other. You then have a running experience that will reduce injury while running longer and farther.
Build stronger feet and legs by wearing shoes without an insole. Designed to be worn without a footbed, these shoes allow for more room and offer less cushioning so you utilize more muscles.
Allow your feet to build strength and support with 3 mm of flat insole. For those new to Zero Drop™ technology, this footbed should be broken into slowly. Transition to the strengthen footbed by first wearing it on shorter runs and gradually working up to your regular mileage. For those with stronger feet, transitioning to the strengthen footbed should be easier.
Providing some arch support, this 5 mm support footbed gives you the feeling of a more traditional insole. For those new to Zero Drop™ technology, this insole is a good place to start.
The Altra stability wedge allows for maximum stability without pressing into the arch and weakening the foot. Unlike traditional stability systems that only provide stability underneath the arch, the full-length 4 mm varus, angled from the outside to the inside of the shoe, runs evenly from heel to toe and accounts for both early and late stage foot collapse. The stability wedge sits underneath the insole of the shoe and can be used in both shoes or a single shoe for those who have collapse on just one foot.
Maximize proprioception with this minimalist sole. Crafted from siped performance rubber, this thin sole layer measures 3.4 mm.
This outsole positions the strongest canted lug traction directly beneath the met heads with follow-up 'claws' positioned near the front of the shoe. The combination of the unique uphill and downhill traction in combination with sticky rubber makes the TrailClaw™ Outsole a beast in any trail condition.
For maximum flex and responsiveness, this outsole maps the bones and tendons of the human foot. With canted lugs mapping your foot, this unique outsole provides a natural, all-purpose traction system for a variety of surfaces, from road to treadmill to dirt paths.
For runners with a wider forefoot, or those just looking for more space for their feet to relax, we’re sharing our customer-preferred and personal favorite lacing system. This unique system allows the forefoot to expand and breathe while securing the heel and preventing “lace creep.”