After trying to buy a Gerbings vest for months (no kidding), they seem to have serious supply issues, I went for plan B. Initially I wasn't sure what plan B was to be but the Tourmaster won me over with it's feature set over others I looked at. This is my first electric garment so I'm no expert on these but I will say it's hard to imagine another vest working better. It gets warm quick, so you get warm quick. The high collar really adds much warmth as well. The controller for these garments are now smart (like the Gerbings) so it only draws as much current as is required for the setting you choose, nice. I ordered an extra large and with my 46" chest is a good fit. Recommended.