From sun-up to sundown, your feet are fundamental.

Yet most of us are walking around in shoes made for someone else. SmartFit™ changes that— creating a completely custom insole from a quick scan you can do at home.

10,000 data points shape each of your insoles— a precise fit for your left and right foot.

No one else has your footprint.

Your feet are the foundation for your whole body. They’ll bear the brunt of over 240 million steps in your lifetime. But proper support for all that movement looks different for you, your neighbours, your co-workers, your parents. And your left and right foot.

Your custom SmartFit™ insoles deliver one-of-a-kind arch and metatarsal support, optimally distributed weight, strain prevention, pressure point relief and shout-it-from-the-rooftops comfort. SmartFit™ takes care of your feet today and for the long haul.

How SmartFit™ Feels

Improved Energy Return

With our Z-spring sidewall design and innovative filament, SmartFit™ offers more shock absorption and responsiveness than premier performance shoes.

Better Balance

Our proprietary gyroid structure won’t compress over time like standard cushioning, so weight and pressure is distributed evenly to keep you bouncing back, step after step.

Superior Stability

Developed as one harmonious system, SmartFit™ offers support for your entire foot. You won’t find this patented support anywhere else.

  • Dr. Sarah Urton
    The reality is that only a small percentage of people have 'perfect feet', and 2 out of every 3 people wear ill-fitting shoes. Smartfit™ ensures your feet have the support they need, and the custom nature of the insoles ensures a proper fit.
    "SmartFit™ works by aligning your leg with the tripod of the foot, distributing the weight, and reducing pronation or supination. By correcting supination and pronation, you walk with more balance and waste less energy. Increased energy efficiency reduces foot fatigue."

Scan at home,

then we print

Download the Casca app. Capture a few simple photos from your smartphone. Then SmartFit™ maps each foot to inform your insoles.

Within two weeks, your custom insoles are 3D printed and delivered to you. In the meantime, you can enjoy your new shoes with Casca’s foundational cushioning.

Shop the All-In-One System

Comfort is complex.

When you feel discomfort in your body, it impacts your ability to do the things that make you feel whole-to get outside of fresh air, to get your blood pumping.

Here’s what your pair of Casca shoes and Smartfit™ insoles can do for you:

Redestributes plantar pressure

Re-aligns your kinetic chain during gait

Improves balance, stability and endurance

  • Free shipping & returns

  • custom smartfit included

  • 30-day comfort guarantee