Patagonia’s R1 Gloves are the thinnest and most form fitting waterproof fishing gloves ever made. They feature a 1.5 millimeter neoprene exterior for water resistance, and a polypropylene interior for insulation. They protect your hands in cold, wet conditions and allow you to control your rod and line just as you would with bare hands. These are a must have if you are stripping streamers for big fish. Patagonia's next offering for cold weather fly fishermen is the Shelled Insulator Fingerless Gloves. These insulated, water resistant gloves leave the thumb and index fingertips uncovered so that you can feel your line, tie on a size 22 biot midge, and release fish without taking the gloves off. In my mind, this makes them a better choice for trout fishing than the R1 gloves.