Temperature Control
Adapts to changing temperatures for all-day comfort
Engineered Durability
Built for repeated use — reinforced where it counts.
Freshness Support
Helps keep feet fresher longer through repeated wear.
Dry Comfort
Moves moisture away for dry comfort through long wear.
Lifetime Warranty
If they wear out, we replace them. No expiration.
Five heights. One standard of performance.
Different footwear. Different coverage. The same premium natural-performance advantage.
Micro
Low-profile coverage for athletic shoes and everyday footwear.
Shop Micro
Ankle
Just above the ankle for athletic shoes, sneakers, and low-profile footwear.
Shop Ankle
6" Crew
Mid-calf coverage for hiking shoes, lower boots, and everyday wear.
Shop 6" Crew
9" Crew
More coverage for hiking boots, work boots, and long days on your feet.
Shop 9" Crew
14" OTC
Over-the-calf coverage for tall boots, cold conditions, work, and extended wear.
Shop 14" OTC
Real footwear. Real conditions.
Built for the footwear you actually wear.
Athletic + Everyday Shoes
Micro | Ankle
Hiking + Low Boots
6" Crew
Work Boots + hunting boots
9" Crew
Tall Boots + Winter Boots
14" OTC
Height comparison guide
Find the right height for your footwear and the conditions you face.
| Height | Coverage | Best with | Available weights |
|---|---|---|---|
| Micro | Lowest | Athletic, casual | Lightweight + Midweight |
| Ankle | Above ankle | Athletic, sneakers | Lightweight |
| 6" Crew | Mid-calf | Hiking shoes, low boots | Lightweight + Midweight |
| 9" Crew | Higher crew | Hiking + work boots | Lightweight, Midweight + Heavyweight |
| 14" OTC | Over the calf | Tall boots | Lightweight, Midweight + Heavyweight |
Free Shipping
On orders $100+
Loyalty Rewards
Earn. Redeem. Repeat.
Lifetime Warranty
Buy them once. Wear them hard.
American Made
Proudly made in the USA