53% organic cotton, 43% bamboo viscose, 4% lycra? spandex, 220gsm brushed back fleece; Temperature regulation, UPF 50+, moisture-wicking, anti-odor; Made with organic cotton and renewable bio-degradable bamboo fibers ; Flat draw cord with metal tipping exit to outer pant; 2x2 flat rib waist band with encased elastic; Soft twill label at inner back waist band; Faux fly stitch, open side pockets with self fabric welt covering; Drop logo tab folded over left bottom pocket welt; Coverstitch seaming at side legs and across back at knee placement; Zipper back pocket with rib welt covering zipper, rib bottom cuffs; Care and content label sewn into waist band at back left; Semi-fitted, tapered to bottom cuffs; Fabric and garments are manufactured in a facility 100% powered by solar and wind energy. Fabric and garments are manufactured in a GreenCo certified facility. 450g of CO2 are saved with the production of each garment