The 3Feet Trail Mid insoles from Sidas are specifically designed for trail running and active outdoor activities. These lightweight insoles provide a non-slip surface that ensures optimal grip, even on uneven terrain. The cushioning at the heel supports foot health and offers a comfortable running experience, especially for individuals with a medium arch. The insoles are designed to maximize comfort and performance while running by evenly distributing pressure and reducing foot fatigue. They are ideal for anyone looking to enhance their running performance while improving the comfort of their shoes.