OPTIMUM BLACK / RED / SILVER VIPER RUGBY BOOT UK 9. Optimum Viper Rugby Boots are the perfect Soft Ground (SG) boot for wet, muddy surfaces. Top quality traction and power output are achieved by a lightweight TPU injected outsole, featuring an ergonomic 8 stud design. A synthetic outer provides a soft fit, reducing the possibility of sore feet. SG Boot for wet, muddy surfaces Speed prioritising Replaceable studs Soft, comfortable fit Colour: Black / Red
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