Just finished up 2 weeks of riding back on forth to work with my Gerbings heated jacket liner and T5 gloves. The days (going to work) have been around 40-45 degrees, and the nights (coming home) have been 30-34. In the daylight, I can get by with just the liner and leather (no heat), but at night, when I crank the juice, WOW! The liner heats up FAST! Talking 4 or 5 seconds. The gloves are bit slower to warm, due to the thick padding, but within a couple minutes, they are cooking too. It is so awesome to be out riding in such low temps, while still being SO comfortable. I used to have to wear bulky coats and layers to go riding this time of year, and still wasn't as warm as I am now with a t-shirt, the heated liner, and my leather w/stock liner removed. On a side note, I've noticed my legs dont get as cold anymore, but I think before next winter the heated pants will be in my arsenal, too. Highly recommend heated gear to anyone who rides 4 season.