The 260 Tech Glove Liners are extra warm, in midweight 260gm merino-blend fabric with a touch of LYCRA for enhanced fit. Layer up with gloves or wear them on their own. The updated design includes touchscreen tips on the thumb and index finger. Swete Sailing loves these as a layer that works particularly well under the WATERPROOF G1 3 FINGER 5MM GLOVES/MITTENS. This is the exact setup that I used to get me throught the Southern Ocean and around Cape Horn. The merino liner coupled with the 3 Finger glove, not only keeps your hands nice and warm, however they are quick and eay to get off in a hurry.