NDB Men's Casual Lightweight Cross-Training Walking Running Trainers (13 UK, All Black) has the following specifications 1.New Style Functional hybrid-style shoes optimized for running and other sports activities with breathable Mesh Fabric and Flex Groove EVA MD Sole. It is Comfortable and Breathable fit for Every Occasion such as Running, Walking,Jogging, Light Hiking and other daily activities. 2.Size Introduction: You can choose your daily UK size. It will be OK for you. 3.Features: -Comfort & Non-Slip: 3D Designed Imported Mesh Fabric, Dual vent mesh structure offers incredible comfortable and quick drying properties. Dual vent mesh construction for dynamic mobility. Perfect accord with human body engineering Keep Your Feet Feel Great! -Excellent Traction & Cushioning : Flex Groove EVA MD Sole provides excellent traction and stability for all surfaces and terrains. Multi-directional flexible groove and cushioned insole for balance even during waterside activities....