The RIO Grand is one half size heavier than the AFTMA standard & features more weight distributed toward the front of the line to easily load fast action fly rods. RIO's Agent X Technology gives the RIO Grand maximum floatation & the XS Technology produces a wonderfully slick, dirt-repelling finish for easy distance. The line is built on a braided multifi lament core that ensures the line remains supple in coldwater conditions. Density Colour Taper/ Size Code Floating Yellow/ Green WF5-8 F-RGRD-WF (+SIZE)F-GY