An excellent, non-textured trout line. It performs best on faster action rods as it is a half size heavy. For example, a 5 WT ine is this product is actually a 5.5 weight line. The GPX has a welded loop for easy loop tp loop leader conections. SA's proprietary "Dry Tip Technology" will keep the critical last few feet of your line high and dry. We recommended the GPX for nymphing, streamer fishing and for throwing medium to large size dry flies (#16 and up).