When things start heating up on the road you’d better have a good pair of socks in h&. & you won’t put a foot wrong with the brand new generation PRS Ultralight Run designed for optimal thermoregulation when training & racing in hot conditions. The featherlight technical mesh is designed to fit like a second skin. It offers exceptional ventilation & quickly wicks away sweat so your feet stay fresh & dry even in tropical climates. The reviewed wider toe box offers an ergonomic fit & enhanced proprioception allowing the toes to expand intuitively on landing for a natural fluid stride. A special knit around the ankle lighter than our classic running sock offers gentle support as you push the pace. Our characteristic arch support prevents the fabric from twisting & irritating in the heat while a terry cloth reinforcement around the big toe saves you from blackened nails as the miles build up. Say goodbye to blisters! The signature 3D. Dots & new Flat. Dots on this ultralight model save on volume & weight but still provide high performance benefits. Running the length of the Achilles tendon they offer added protection support & ventilation during fast races. Underfoot a clever pattern comprising of 50% 3D. Dots & 50% Mesh. Dots cushions impact & adds grip in the shoe. It also provides gentle micro stimulation to increase venous return & enhances ventilation by increasing airflow between the dots. The sock height is lower than the trail & bike models to answer the demands of road running. An ergonomic tab at the back adds a touch of comfort & style & should you forget why you’re heading out the door the discipline is discreetly embroidered on the inside. An explosive blend of technology in a weightless package this 4th generation Ultralight running sock is your new weapon of choice to take on the Saharan desert or race a heat wave in Boston. KEY BENEFITS High performance sweat evacuation thanks to technical mesh panels & ventilation technologies Ultralight fabric for a second-skin feel & maximum comfort when running in hot or tropical conditions Maximum thermoregulation & ventilation thanks to featherweight mesh panels helping keep your feet fresh & cool