The Adidas adi365 Wa Tight uses Climawarm+ technology to trap heat against the body while still releasing sweat, keeping a cold-weather run warm without turning damp. A drawstring waist locks in a secure fit through the miles, so the tights stay in place without needing a second thought once the run gets moving. What Our Gearhead(R) Experts Are Saying:"I ran these through a 20-degree morning and never felt the usual clammy chill that shows up once sweat starts building. The drawstring waist stayed put through every mile without a single adjustment."