John Moretz, the creator of TrueEnergy socks, is a lifetime entrepreneur with a knack for textile innovation. Upon turning 70 this year, he launched this new sock series made for everyday wear—whether you’re at the gym, hiking a trail, or on your feet all day at work.

Thanks to infrared threads inspired by NASA technology, TrueEnergy socks capture your body’s natural heat to help provide temporary pain relief, loosen tight muscles and joints, promote circulation, and improve flexibility. In three different styles—crew, over-the-calf, and no-show tab—the socks ensure a comfortable, easy on-off fit with seamless toes, expanded heel pockets, a stabilizing arch band, and select cushioning for added support. Mesh vents facilitate airflow, keeping feet feeling fresh and dry for hours.