The Ligum Mobility X Knee Guard Pads is designed from highly durable materials to provide optimal performance and knee protection. Centred sponge pads protect the knees from scrapes and injuries. The guard also boasts a lightweight ergonomic design, providing freedom of movement, as well as a double-lined anti-slip silicone that provides extra reinforcement and ensures the guard doesn't slip Features: - Durable material for long-lasting performance - High-density sponge padding for effective impact absorption - Elasticated fabric for a secure fit and optimal mobility - Lightweight and breathable for comfort Size Guide S/M Top Circumference : 30cm (stretched: 46cm) Bottom Circumference : 25cm (stretched: 34cm) Length : 27cm Padding : 14cm (W) x 15cm (L) Padding Thickness : 2.5cm L/XL Top Circumference : 35cm (stretched: 50cm) Bottom Circumference : 31cm (stretched: 44cm) Length : 30cm Padding : 16.5cm (W) x 17cm (L) Padding Thickness : 2.5cm How to Choose Your Size: Measure the circumference of your leg above and below the knee. If you're in between sizes, choose based on your preferred fit: For a snug fit: Choose the smaller size. For a more relaxed fit: Choose the larger size. If You Know.