Mittens That Stay On
Two hours on the sledding hill and nobody has asked to come in yet. No cold wrists, no meltdown at the door, same two mittens they left the house with.
The gauntlet goes over the coat sleeve and secures above the elbow, so there's no gap at the wrist for snow to pack into. A Minnesota mom of four designed it this way in 1991 when she wanted to spend more time outside with her kids.
