Fleece Neck Gater made from Polartec 200 material.   This soft fleece gater by Molehill Mountain Equipment is a TwinzGear "Great Gear" pick. 

Use it to keep your twins warm whether they're on the ski mountain or just playing in the snow.  Protects all those open spots around the neck and ears from the harsh winds of winter.  We LOVE these and so do my twins!!