A light and highly breathable sock with targeted ventilation to keep feetcool. CoolFusion RUN technology maximizes the benefits of natural andtechnical fibres knit in such a way so as to combine ventilation andcushioning with elasticized fit and foot wrapping performance. Built withBridgedale's exclusive T2 anti-shock technology. This is a loop within a loopwhich offers an additional level of impact protection; the inner loop has evenmore resilience than the outer loop for cushioning on the achilies, heel, andmetatarsal head. T2 pad technology has been knit into the pressure points:ball of the foot, lace up. Knit with Merino Wool that provides softness andexcellent moisture wicking properties. ENDUROFIL adds additional durabilityand wash resistance and LYCRA SPORT for the perfect fit. Light cushioning and3/4 crew height.