Spenco Ironman Flexalign High Arch Support Insoles

Designed for feet with medium arches, the Spenco Ironman Flexalign High Arch Support Insoles offer advanced impact support to your heel and foot, ideal for training and competing in the intensive Ironman triathlon. They deploy sophisticated materials and a technically informed design to help you build fitness, form and performance in safety and comfort.

What Are the Features of These Insoles?

To offer you the best in support, relief and performance, the Spenco Ironman Flexalign Neutral Arch Support Insoles contain the following:

• Pwr-Gel Base – offers excellent cushioning for the heel which does not diminish over time
• 360 Heel Cup – guarantees the whole heel receives cushioning and support upon impact, and protects the plantar fascia
• Deep Profile – offers bespoke support especially for feet with high arches
• Flexalign Construction – offers simultaneous shock absorption and energy return, allowing for lightweight performance

Who Can Benefit from Using These Insoles?

These insoles are ideal for anyone experiencing impact related discomfort in their heel or plantar fascia. They are also an excellent performance insole and ideal for those looking to build fitness, technique and results. These insoles are designed to help people reach the levels required for the Ironman triathlon, but can benefit anyone building up to a personal sporting milestone, or recovering from pain or injury in the heel of their foot.

Which Parts of the Foot Do These Insoles Support?

With bespoke high arch support, these insoles help to support the full length of your foot while paying particular attention to your heel. They support and cushion the area where the plantar fascia meets the heel to reduce strain along and around this bone. At the same time, pressure is taken off of the lateral and medial arches through the effective control of foot position and gait.

How Does Pwr-Gel Work?

Spenco's Pwr-Gel material has been specially formulated to maximise cushioning for its wearer. It has less than 11% compression set, meaning it springs back up even after extended wear to allow for exceptional impact resistance which stands the test of time. At the same time it is robust and durable, and able to withstand tear or degradation mile after mile.

How Does the 360 Heel Cup Work?

The 360 Heel Cup is designed to offer support to the whole heel and beyond. It offers protection to both the medial and lateral sides to keep the heel aligned and prevent any kind of eversion or inversion, as well as cushioning the beginning of the plantar fascia to prevent the development or exacerbation of plantar fasciitis.

What Is Flexalign?

Flexalign is a material formulated by Spenco to prioritise lightweight density, cushioning and performance. Its durable body absorbs impact and cushions your heel, while also transforming that impact into energy to maximise your performance. As an exceptionally lightweight material, it is even appropriate for being worn with sandals.

How Do I Know What Size My Arches Are?

There is a simple method for measuring the size of your arches: with wet feet, simply stand on a piece of paper leaving the imprint of your feet. If the mark left has no indent or only a small indent beneath the arches then you have low arches or flat feet. Conversely, if there is very little joining the front and back of your foot, or even nothing, then you have high arches.

Which Sizes Are Available?

These insoles are available in six sizes:

Which Activities Are These Insoles Appropriate For?

As their name suggests, these Ironman insoles are designed to help you train and perform during the Ironman triathlon without injury. They are, however, an excellent choice for maintaining support and comfort in any high impact activity, including running and walking.

UK Delivery Information & Fees

This product is normally dispatched by Royal Mail. The normal delivery expectation of this service is 1 to 3 working days.

When ordering before 2.00pm (Monday to Friday), your item will usually be dispatched the same working day.

We offer free delivery on all orders of £40.00 and over. On orders below £40.00, a £3.95 delivery charge is applied.

Please see our specific delivery information page for more information. For up to the minute delivery information, please call our customer care team on 020 7501 1102 who will be happy to help.

Our Guide to Finding the Perfect Size and Fit

Using Your Shoe Size

For most of our insoles, the easiest way to find the best size for you is to go off of your current shoe size. The majority of our insoles are available in a range of sizes and you can simply select the size that best fits your existing shoes.

Please be aware that, as with shoes, there can be slight variations in the size of insoles. For example a size 8 of one brand might not be exactly the same size and width as the size 8 of another. To help account for these discrepancies, a number of our insoles include dimensions to help you ensure you're getting the right size.

Measuring Your Current Insoles

While using your shoe size to find your best size is a good guide, it is not always foolproof. If you want to guarantee that your insole fit your shoes as closely as possible, we recommend measuring your existing insole and using this as a guide to your size.

To do this, please follow the steps outlined below:

1. Remove the existing insole from the shoes you wish to use your new insoles with (please note that not all insoles are removable)
2. Measure the insoles at their longest and widest points (see the below diagram for an idea of where this will be
3. Match the measurements to the dimensions of the insoles listed, and choose the size that best fits your results

Where Can I Find the Dimensions?

The dimensions for insoles can be found on the "Product Details" tab (please see below) and are usually found in the sizing section of the listing, in a table. Please be aware that not all products currently have the dimensions listed.

The dimensions of insoles can usually be found on the "Product Details" tab

What If There Are No Dimensions Listed?

If you do not see the dimensions listed on the Product Details tab, please fill in the form below and we will work to get the relevant information as quickly as possible. We will email you once we have the information that you have requested.

Trimming Your Insoles to Fit

To get the ultimate level of fit from your insoles, you can trim them to make a small adjustment. To trim your insoles, simply follow the steps below:

1. Remove your existing insoles from your shoes
2. Line up your existing and new insoles at the heel
3. Trace the outline of the insoles against the new pair at the toe end (see the image below for an example)
4. Carefully cut along the traced line
5. Your insoles should now fit your shoes better

Carefully trace the outline of your insole

Please note that not all insoles are suitable for trimming. Most insoles are unsuitable for return once they have been trimmed to fit; we recommend bearing this in mind prior to trimming.

If you would like a more detailed guide to trimming your insoles, please read our full guide on How to Trim Your Insoles.