Sidas Max Protect Activ' Insoles Protect your feet and keep pushing for perfection in the Sidas Max Protect Activ' Insoles. Experience increased comfort and performance for high-intensity sports thanks to the Sidas Max Protect Activ' Insoles. Designed to cushion shocks, these insoles use Podiane I+ technology which absorbs 90% of the energy from an impact and protects your joints. Their propulsive dynamic insert at the front ensures energetic launching whilst their TPU Flex shell arch support improves your stability and reduces the risk of twisting. The mesh covering and the gel insert at the heel ensure breathability, moisture management and immediate comfort. Size Guide Small / UK 4-5 / EU 37-38 / US 5-6 Medium / UK 6-7 / EU 39-41 / US 7-8 Large / UK 8-9 / EU 42-43 / US 9-10 X Large / UK 10-11 / EU 44-45 / US 11-12 XX Large / UK 13-14 / EU 46-48 / US 13-14