Adding Cork

ZipFits don't pack out, but they do pack around. The cork is compression resistant and will flow like a liquid from areas of high-to-low pressure. If you feel your fit changing, this is because cork has moved into areas you didn't know you needed it. This is why ZipFits are designed so you can add more! All you will need are some tubes of cork, our plunger tool, and ideally a way to keep everything warm while you work.

Addressing Instep Pressure in ZipFit Innerboots

Removing cork from your ZipFits

sing an empty cork tube, Jeff demonstrates how to remove cork from the pouches in ZipFit liners.

ZipFit Insoles - Any foot, any footwear

This video showcases the four ZipFit insole styles that are available as of October 2025. Jeff compares the four styles and talks through appropriate footwear pairings for each.