Soccer leg guards. These are extremely small, mini leg guards. This is size XS, so please be careful not to mistake it for size S. Please check the second image for a comparison between size XS and size S (*^^*) Size is approximately 8cm x 5cm. These are mini-sized leg guards. My university student son has been using these in official matches since his high school days, and he says he has no problems with them! He says that with these small leg guards, it's easier to play soccer and fatigue is significantly reduced. I haven't heard of them being unusable in official matches around me, but just in case, please be aware of the possibility. For those in a hurry, I will ship via Rakuraku Mercari (Nekopos) by the day after purchase!