Crafted from premium and durable knitted mesh upper Soft textile microfibre lining for breathability and comfort Removable 3mm insole for comfort Adjustable lace up closure provides secure fit Durable lightweight synthetic rubber sole for excellent grip and stability With A Sensitive 2Mm Primus Sole And A Light, Flexible Knit Upper For Full Natural Mobility, The Primus Lite Knit Is Ideal For Active Lifestyle Wear And Low-Intensity Workouts With Controlled Motions And Minimal Lateral Movement. It Thrives At Weight And Strength Training, Calisthenics, Animal Flow And Light Road Running.