Snow.
Ray has pink "fleece" gloves (the kind that's flat, not the kind that looks like sheep's wool). They're warm, they stay pretty dry inside, and they don't slip off unless they're meant to. All good.
One problem. Yesterday I pelted Ray a good one. She picked up a handful of snow, ran after me, got close enough to throw her handful of snow at me, cocked, aimed, threw -- and the snow stuck in the mitten. It just cracked into pieces and stuck.
Poor girl. She had to run up to me and squish me with the snowball.