Chico’s Zenergy Leggings with Velour-like patch down outside of legs

Zenergy by Chico’s black leggings. Velour-like fabric runs down the outside of the legs from the knee to ankle. Thin, slick feel to the material. Excellent used condition. Approx. measurements- waist:16.5” across laid flat, inseam: 26” Chico’s size 2, US size 12/14