Yonex Aerosensa 10 Shuttle 12 Whips Percussions savane trousers come lightweight Percussions savane trousers come lightweight and offer effective moisture transfer so particularly good on warm and dry days A hi tech yarn combining natural or artificial fibres with pure copper The exact observance of production parameters in a manufacturing environment with constantly controlled temperature and humidity guarantees that every YONEX shuttlecock is optimally suited for the required top performance It is only thanks to the strictly controlled production conditions that YONEX shuttlecocks are able to withstand the special requirements of today's high speed badminton game in terms of durability and flight stability