Non-stretch core for the ultimate in sensitivity and hook setting capability Powerful, front loaded head for easy casting and maximum distance Density Compensated for perfect fly control A complete series of full sinking lines developed for the lake angler, and packed with the very finest assets. A powerful head loads the rod up from the first cast; welded loops on the front end allow anglers to change rigs at high speed; RIO&&';;s non-stretch "ConnectCore" results in fantastic sensitivity for detecting the softest take, and a unique "hang marker" shows anglers when the line is coming to the end, or when to fish the "hang". WHEN YOU RELY ON TOUCH TO KNOW WHAT&&';;S GOING ON IN THE DEPTHS, LINE STRETCH IS THE ENEMY.Our ConnectCore full-sinking lines open up new worlds of perception and sensitivity with no-stretch performance. Soft, subtle takes become positive grabs, and without stretch to dull reaction times, hook sets are instant and sure. ConnectCore. The secret weapon for stillwater success.