Fits best in: Superfeet guide insoles fit many roomy hunting boot styles that have factory insoles you can remove tag your next trophy with carbon fiber-reinforced support and all-season comfort. Superfeet guide™ insoles feature the evolyte™ carbon fiber-reinforced stabilizer cap for weight-defying support, while the ground-sense™ impact dampening technology takes the brunt mile after mile. Superfeet’s specially formulated thermoright™ memory foam creates a thermo-regulating comfort barrier. It conforms to your foot, so you can spend hours in the cold without feeling the chill. The exclusive scentlok® layer and silent step™ stabilizing shape won’t give you away. For the American outdoorsmen and women responsible for protecting the land and wildlife, Superfeet created the trophy series – the first family of premium insoles designed specifically for the hunt. More stability = greater accuracy features enjoy long-lasting warmth and comfort when you’re out in the field. More comfort and stability = greater accuracy evolyte™ carbon fiber-blend stabilizer cap for weight-defying support thermoright™ thermo-regulating memory foam warm comfort layer scentlok® technology for long-lasting odor control silent step™ stabilizing shape ground-sense™ impact dampening technology the flexible heel cradle and foam provide the shape that supports the foot and arch. No latex, nickel sulfate, formaldehyde or preservatives. Vegan. How it works: Superfeet guide insoles adapt the generic, 2-dimensional surface inside of your roomy hunting boots to your 3-dimensional foot. The distinct Superfeet shape helps to stabilize the foot, while the flexible heel cradle and full-length foam provide support and comfort with every step.