CoiL Enclosed Black Rugged Outsole

Details: Ships as a pair Heavy duty outsole - thick off-road tread that holds up well in harsh environments The soft spring enclosure will last 1-2 years under normal dry conditions, however, it will age prematurely when exposed to strong chemicals (used mainly in cleaning agents) or animal urine. Embedded mesh fiber - for added strength Our longest-lasting outsole design Installation: Step 1. Remove the insole from each shoe. Step 2. Below the insole is a “trap door.” Lift up the door and unscrew the spring with a Phillips screwdriver. Tighten firmly, but use caution not to strip the screw head. Step 3. Re-attach the spring in EXACTLY the same orientation as the old spring. Note: only Z-CoiL open springs can be adjusted in 90-degree increments to adjust for pronation. Turning the coil will affect the resistance on the inside/outside of your feet and may cause under or overpronation. Step 4. Call the Z-CoiL headquarters with any questions @ 800.268.6239