Superfeet Premium Insole Carbon Fiber Trim to Fit Ultralight & High Performance

Superfeet Premium Insole Carbon The result of years of research and field testing, CARBON is for the dedicated athlete who demands high performance results. Our revolutionary insole achieves a new level of lightweight performance by combining a carbon fiber-reinforced stabilizer cap with a durable, ultralight foam layer. CARBON’s distinct biomechanical shape and low-volume design can help improve the fit and...

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Superfeet Premium Insole Carbon

The result of years of research and field testing, CARBON is for the dedicated athlete who demands high performance results. Our revolutionary insole achieves a new level of lightweight performance by combining a carbon fiber-reinforced stabilizer cap with a durable, ultralight foam layer. CARBON’s distinct biomechanical shape and low-volume design can help improve the fit and feel of tight-fitting athletic footwear like cleats and lightweight shoes.

Fit Profile

Low-profile insole with a versatile shape offers high performance support.

Recommended Footwear

A wide range of tight-fitting, low-volume athletic footwear with removable insoles.

60 Day Comfort Guarantee:

You have nothing to lose but your sore feet. If you are not satisfied with your new insoles, return them within 60 days to your place of purchase for a credit or refund. This guarantee is only valid with a proof of purchase, and is not good for misused, abused or improperly cleaned Superfeet product. THIS GUARANTEE IS SUBJECT TO OUR RETURN POLICY.

Waterproof Liner Disclaimer

Most orthotics will conform to the heel in your footwear, and over time can wear through the lining. Superfeet offers no guarantee against this resulting side effect in footwear with waterproof liners such as Gore-tex®.

The Superfeet ADD/APT SYSTEM™ traces back to our start as the Sports Medicine Division of the Northwest Podiatric Laboratory in 1974. ADD/APT encompasses the biomechanical science, technology, function and craftsmanship that adjust your footwear’s flat, 2-dimensional midsole to your 3-dimensional foot.


Superfeet insoles help adapt the flat midsole of the footwear to your foot. The distinct Superfeet shape helps to stabilize the foot, while the structured heel cup and full-length foam provide support and comfort for every step.

    1. Heel Cup - The structured heel cup helps stabilize and support the foot and positions the heel to naturally absorb impact.
    2. Biomechanical Shape - The low-profile shape helps stabilize and support the foot, which can help reduce stress on feet, ankles and knees.
    3. Foam Perforations - Perforations under the midfoot and forefoot reduce weight and improve breathability.
    4. Antimicrobial Coating - All natural coating that inhibits the growth of odor-causing bacteria.


Do Superfeet Insoles help Plantar Fasciitis?

Yes, in most, but not all cases. The Superfeet Insoles will help hold the rearfoot close to a neutral position. The neutral position will allow for better bone and muscle alignment. This will help reduce some of the stress on the plantar fascia ligament.

Can I wear the insoles in my shoes where the manufacturer's inlay does not come out?

We do not recommend that you place a Superfeet on top of the manufacturer's sock liner (insole). However there are shoes where the factory insole may not be removable. You may place the Superfeet in these shoes as long as it doesn't make the fit of the shoe too tight against your foot. The best Superfeet insole option for shoes without removable insoles is the 3/4 Easy Fit model.

My insoles are squeaking, what can I do to eliminate this squeak?

If the Superfeet insoles are new and make a squeaking sound, there could be a number of causes.

Give the product two weeks to mold to your feet and settle into the shoe. The sound generally dissipates. If after this time the squeak is still there, apply some baby powder inside the shoes under the insoles and apply some baby powder on the bottom of the plastic Superfeet cap. You can also try the insoles in different shoes to see if this squeak goes away. Check to make sure that the product is not trimmed too long for the shoe's internal length. Jamming the insole in the shoe can create problems with fit and function.

Why does the arch hit so far back?

When you first try on the Superfeet product you may feel like the arch is too far back. This is not uncommon and it can be a positive feedback from the product. All Superfeet products are primarily designed for feet that over-pronate. If you feel like the arch is too far back, the product is actually telling you that it's trying to support you rear foot (heel bone) so the foot doesn't have the ability to collapse. As you go through the break-in period with the product, it may take 10 minutes to 2 weeks for the feeling of the high spot support to dissipate. If the feeling does not dissipate and become more comfortable, contact the Superfeet dealer where you purchased the product or call customer care to help you determine if you have purchased the correct size for your foot and the correct model for the shoe style and your foot type. If you trim the Superfeet insole too long for the shoe, it will jam the Superfeet in the shoe and give you the feeling that the arch is too far back. You may want to trim the front end of the Superfeet insole so that the product can move in the shoe from front to back, about the thickness of a nickel. This allows the product to be independant of the shoe. The Superfeet product will center itself underneath the foot, increasing comfort and function.

Trim and fit your new Superfeet Insoles

The way you trim your insoles can have a great effect on how well they will work and feel. For an ideal fit, follow these simple steps:

Step 1

Superfeet insole should lie on the bottom surface of your footwear. It should not rest on any additional insole, arch pad or heel cushion material. These items should be removed.

Step 2

Place the original insole over the top of your new Superfeet insole, lining up both the heel (Fig. 2) and inside edge (Fig. 3). With a marking pen, trace the original insole pattern onto the new Superfeet insole (Fig. 4). Trim the insole by cutting along the inside edge of the tracing line (Fig. 5). Care should be taken not to trim too short. Trim it, try it. Trim it, try it.

Step 3

Fit your insole into your footwear, resting it properly on the bottom. The insole needs to have minimal back-to-front movement inside the footwear (about 1/16" or 2mm) to ensure the insole moves with your foot and is not jammed heel-to-toe (Fig. 6). This is very important. Properly trimmed, your insoles will fit easily into your footwear without a struggle, and will not curl up in the toe area.

If You Have No Original Insole

If there is no original insole in your footwear to use as a template, place your footwear over your new Superfeet insole (Fig. 7), and trace an outline around the toe area (Fig. 8). Then follow the usual trimming instructions. Hint: trace and trim one insole first, then use it as a template for the second insole.

Too Tight in the Forefoot

If your footwear is too tight to accommodate the full length of your Superfeet insole, you can trim off the forefoot closer to the stabilizer cap (Fig. 9). This will have no effect on the biomechanical benefits of the insole.

What to Expect From Your New Superfeet

Your new insoles may initially feel snug, but after wearing them for a few days, the foam forefoot will compress slightly, allowing for a more relaxed fit. Our patented insoles are designed to be firm and supportive, not soft and mushy like most gel-based footbeds. You may initially feel this new support on the inside of your heel (Fig. 10) and suspect the arch is too far back. This is ok. This is the shape and design of the insole supporting your foot where it is needed. Because your previous shoes or insoles may not have supported your foot properly, the tendons and muscles of your feet may need time to adjust to their properly supported position.

Break-in period

We suggest taking a conservative break-in approach; try wearing your Superfeet for just 1-2 hours for the first day, then gradually add more time each day. If you are experiencing discomfort with your Superfeet after 5-7 days of wear, and it is not improving, remove the product from your footwear and contact the store where you purchased the product. (We recommend you retain your original insoles until you have completed your break-in period).

How long do Superfeet last?

This depends on your foot type, body weight, type of footwear, activity and the environment in which the insole is worn - but the average Superfeet insole lasts up to 12 months or more.

Cleaning instructions for your new Superfeet insoles

Hand-wash with a mild soap and lukewarm water to remove light soil. A soft bristle brush (old toothbrush) works well to remove ground-in dirt. Rinse well. Absorb excess water with a soft towel and allow insoles to air dry overnight. DO NOT MACHINE WASH OR DRY. DO NOT AIR DRY NEAR A HEAT SOURCE!