1 Brand new and high quality2 Flexible to do sports? more comfortable wearing.3 Four springs support design? more ergonomic design 4 Open design? more comfortable to wear 5 Adjustable and durable 6 EVA gasket design? very comfortable Model: SX516 Color: Black Material: 75% synthetic rubber? 25% nylon Size: ( unfold length x width ) about 57 x 31 cm ( the widest width )? one size? suitable for knee circumference 31-45cm Thickness: 3.7 mmApplicable: knee pain and discomfort? mild strain/sprain? knee fatigue? patellar instability? fitness and a variety of sports.1 x Knee brace<br /><img src="http://img6.eachbuyer.com/x9/p100/bv753_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_7.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv753_8.jpg" />