Abacus's X-Series is their most elite range for golf wear. The technology is astounding throughout the X-Series range. Knitted Compression socks with the company's famous 37.5 Technology that keeps your feet at 37.5 degrees & in the perfect comfort zone. Abacus's 37.5 Technology improves the micro environment inside the sock to provide fabrics that evaporate moisture in the vapour stage before it becomes sweat. When your overheating 37.5 technology speeds up evaporation & cooling, when you're cold the particles return to keep you warm once more. 40-60% humidity is created in the ideal comfort zone range. Extra padding is positioned in the heel, sole & toe of the sock for ultimate wear & comfort.