Probably, but they'd need a lot of heating. You lose a lot of insulation with exposed fingertips. Raynaud's starts from my fingertips, so they'd basically need

Probably, but they'd need a lot of heating. You lose a lot of insulation with exposed fingertips. Raynaud's starts from my fingertips, so they'd basically need enough heating to keep the fingertips warm via convection. (Plus I'm not sure how you'd do exposed fingertips on a mitt rather than a glove. If you just cut off the end of the mitt you've effectively just got a long sleeve with a thumb pocket.) I do have some wool gloves with exposed fingertips, but if I'm sedentary, they're only good for me down to a minimum of +5C or so.