The Achilles tendon is the thickest human tendon, and is one of few tendons in biology that operate near their ultimate tensile stress. This high strain occurs when we run. The Achilles tendon helps control forward progression of the leg over the foot, and is critical in initiating heel lift in both walking and running.

The Achilles Tendonopathy insole is designed to help control forward progress of the leg, with a specially contoured midfoot support and an integrated, pitched hindfoot raise to aid heel lift during the driving phase of gait.



As the car approaches the bridge, it slows to go up the incline. Calcaneal plantarflexion is reduced when the heel meets the mid-foot saddle.

At a safe speed, the car crosses the hump of the bridge. The foot is stabilised when fully loaded on the saddle.
Once over the hump, the car accelerates away. The 1st ray drops into the recess and encourages the MTP joint to bend, the heel raises and sagittal movement within the foot has been maximised.


If you have been issued with a pair of these insoles by an NHS clinic and woudl like to purchase additional pairs please visit

Sizes (approx.)
Code Size UK EU
XLINEAT04 Small 3-5 36-38
XLINEAT03 Medium 6-8 40-42
XLINEAT02 Large 9-11 43-46
XLINEAT01 Extra Large 12-14 47-49
XLINEAT01X Extra Extra large 15-16 50-51

This size chart is intended as a guide only