When you are engaged in sports， your knees are working with high pressure and burdening most of your weight， that’s why they need professional protection. This 1pc SX519 2-spring-supporting Adjustable Knee Protector Black Medium is just designed to protect your knees during exercise. Featuring adjustable design it can suit your knees better， and enable you to adjust it to a most comfortable position to serve better. Moreover， the spring design can provide strengthened support to your knees. With premium material， it is permeable and flexible， won’t block your blood circulation， or cause any discomfort during wearing. Considering all these merits， it must be a best choice for every sports lover! Don’t miss such an ideal helper!                                    Features             2-spring design to provide strong support to your knees<br> Adjustable to fit your knees and meet different demands in various activities<br> Premium material with high elasticity to avoid obstruction to your movement or blood circulation<br> Soft and permeable for comfortable wearing<br> Fastened and wearable to ensure long service life<br> Helpful to warm your muscle， prevent over exercising and reduce shock<br> Single side to protect one of your knees in each package   <br>                                                            Specifications             Main Material     Synthetic Rubber and Nylon    <br> Size      Medium    <br> Protect Parts     Knees    <br> Dimensions     (21.65 x 7.87)" / (55 x 20)cm (L x W)     <br> Weight     4.8oz / 138g    <br> Color     Black      <br>                                                             Package Includes            1 x Knee Protector<br>