Screen Shot 2021 01 21 at 7.48.44 AM - Welcome to the work bench

Welcome to the work bench

We explain this here, but basically the key is to warm the shells and liners so that the OMfit cork becomes easily malleable and takes the shape of your foot and lower leg once the the foot is in the liner and the liner in the shells.

To learn more about adding more cork, visit our Home Fit page.

ZipFit liners come in half sizes ranging from 21.5 to 31.5. Typically, we advise skiers to choose the liner that corresponds to their ski boot shell size, or if the ski boot brand uses whole sizes, size down a half size (24.5 ZipFit in a 25 shell).

There are some exceptions, notably when skiers have down sized their shells aggressively (2 or 3 sizes smaller than their shoe size) — here we advise trying on a few different sizes for fit and comfort. Because ZipFits have a flexible neoprene toe box, we advise ensuring that the volume and fit of the instep and cuff are secure and proper, and if you can size up your liner to have more comfort in the toe box, your toes will thank you.

If there is a local ski shop that carries ZipFit, we recommend going in and supporting that shop. Professional boot fitters can help you with far more than just your Zips and they will help with any uncertainty you have around at home fitting.

If your local shop doesn’t have the ZipFit model you want, let us know and we can set up an arrangement to get that style liner to the shop for you.

If there is no shop nearby, we will gladly help you select the correct fit for your feet and ski boots. We are committed to customer service and are here for any questions you have.

We field this question a lot. It all comes down to user preference.

Are you willing to lace up your liners and step into your shells before every use? Our leather lined ZipFits require this move, while our neoprene lined ZipFits are easier to step into. If your answer is “no way” – we suggest the neoprene liners.

Leather offers a true to form fit meaning your ankles and shinbone will imprint into the leather, securing your lower leg and foot to the ultimate degree.

Neoprene has more natural cushioning, so while you can still get an excellent fit, they have a more forgiving feel when skiing.

Both interior liners can last a LONG TIME with proper care. While we think of leather as more durable, we know of a pair of neoprene liners with 1500 ski days.

For precision fit and performance, the leather has a slight advantage.
For ease of use and all mountain comfort, the neoprene has a slight edge.

Certainly, but take note that if you make an incision in your liners for boot heaters, that will void your 30 day money back guarantee. We recommend skiing in your liners for a week or so to ensure they are the right size and model before you add boot heaters.

Yes, we highly recommend using a good over the counter orthotic or custom foot bed in your ZipFits. ZipFits are designed to keep your foot and leg in the proper position within a boot, having the correct footbed for you will help immensely. If you are interested in ZipFit footbeds, reach out to us in the Contact Us form.

At this point, we have heard that ZipFits are not compatible with most snowboarding boots, however, we have heard your cries for a better snowboarding liner and we have a project in the pipeline.

Alpine snowboarders have had great success with ZipFits and we suggest you check out this forum for more beta on liner choice.

We haven’t personally used Apex Ski Boots, but if you buy a pair of ZipFits as replacement liners, we recommend using them inside the Walkable Boot and not directly in the Open Chassis shell. If your ZipFits are not compatible, return them within 30 days for your money back.

Our laces and power straps help keep your foot in the proper position and enable more power transfer through your leg to your ski. If you don’t want to use them, that is totally acceptable. The power straps and laces are removable.

We sell replacement power straps on our website. If you need replacement laces, reach out to us in the Contact Us form and we can help you out.


There are times when it is totally acceptable to blame the gear, because a lot of ski boot liners… suck.

That said, if you buy ZipFits and you aren’t automatically the best skier on the mountain, don’t blame the gear, blame the skier.