Why choose specialist trail running insoles?

In trail running, choosing the right shoes is crucial, but insoles also play a vital role. On uneven terrain, your feet are constantly under strain: technical descents, roots, stones, uneven slopes or long climbs put comfort and stability to the test. A suitable insole can improve foot support, reduce muscle fatigue and give you greater confidence on the trails.

The Sidas 3Feet® Trail insole has been developed to meet precisely these needs.

Why replace the original insole in your trail running shoes?

Most trail running shoes come with standard inlays, often referred to as ‘cleaners’, designed to suit the widest possible range of people. They generally offer basic comfort but little specific support.

By choosing an insole tailored to the shape of your foot, you can enjoy several benefits:

• better arch support;
• greater stability on uneven terrain;
• reduced fatigue during long runs;
• more effective heel cushioning;
• less friction, which helps prevent blisters.

It’s often these small details that make all the difference after several hours on the trails.

The best trail running insole?

Sidas’s 3Feet® range is based on a simple principle: not all arches have the same needs.

The 3Feet® Trail model offers natural support without excessive correction, depending on the support level chosen (Low, Mid or High). The aim is to improve comfort whilst respecting the foot’s biomechanics.

Excellent stability on technical terrain

One of the key strengths of the 3Feet® Trail is its design focused on foot control.

The EVA foam base is both lightweight and non-slip, helping to minimise unwanted movement inside the shoe. This extra stability is particularly beneficial during descents, traverses on sloping ground or rapid changes of footing.

Greater grip and responsiveness with every stride

In the forefoot, Sidas uses a Dynatene® rubber foam insert.

This technology improves grip between the foot and the shoe whilst promoting more efficient propulsion. The result: the foot stays more securely in place and that dynamic feel is maintained even when the terrain becomes challenging.

Long-lasting comfort during long runs

As the kilometres add up, comfort becomes a key factor in performance.

The 3Feet® Trail features:

• an EVA heel pad that effectively absorbs impact;
• a flexible shell that naturally follows the foot’s movements;
• perforations to help wick away moisture.

This design helps to minimise overheating and reduce the risk of blisters during long runs or ultra-trails.