BG80 is a Hard Feeling badminton string with repulsion power for players that want power smashes with a solid feeling. High-modulus Vectran provides a solid feel and powerful smash, thanks to the high-strength and high-elasticity spiral winding to prolong durability and racquet stringing tension. This advanced material is wrapped around a strong multifilament core of BG80. To ensure minimum "slack" Vectran, Yonex recommends string tension should be 5-10% less than BG65.