Spraino - Sprain prevention sticker
Spraino is a Teflon sticker applied to the outside of the shoe to reduce friction between the shoe and the floor. Spraino reduces the chance of ankle injuries and reduces stress on the ankle joint by 91%. Tested and approved for handball, badminton and volleyball.
The package contains 2 wet wipes, 4 front Spraino patches, 4 back Spraino patches (enough for two pairs of shoes).
Depending on the athlete's activity level, the sticker lasts approximately 20-40 hours before needing to be replaced*.
You can see an instruction video for the Spraino Sprain Prevention Sticker at the link – Instruction Video
* Various factors to consider such as: weight, height and level of player.