Bridgedale Cool Fusion technology maximises the benefits of natural & technical fibres knit in such a way so as to deliver a highly ventilated sock ensuring it is light & comfortable in the warm conditions one finds on this planet Targeted padding provides additional cushioning & foot protection delivering lightweight comfort for those hiking biking or running on the world’s trails Light breathable & close fitting Light mesh permits air circulation Cushioning under heel ball & toes provides protection Cotton & coolmax for comfort 1 year guarantee