Worn once due to weight change. Per the manufacturer: Temp Tech trouser leggings is an innovative collection with one goal in mind; all day comfort! These leggings maintain your perfect temperature with intelligent thermoregulation. The technology activates when you are hot, wicking moisture to cool you down and deactivates once you are cool. It's like a personal thermostat for your clothes! Temp tech technology Functional front pockets Slit ankle detail Woven 4-way stretch for ultimate comfort 28.75 inch inseam Imported Materials & Care Instructions 76% Rayon, 20% Nylon, 4% Spandex Questions? Leave a comment below!