Cognito Brook Trout #2 Leggings, Ryan Keene's Brook Troutdesign on a performance yoga-style legging. Wear as wader liners, long underwear, workout leggings, or to get trouty for a night on the town. These All Sport Leggings feature 4-way stretchUV protective fabric (72% polyester 28% Spandex) for comfort and fit unmatched. 4' waist band, interior pocket, flat-lock stitching.