EastPinMens Gifts Beanie Hat with Light: Stocking Stuffers Women Men Rechargeable Cap LED Flashlight Winter Hats Gift Ideas for Dad

Getting this as a gift for my brother, does it run small? I see a lot of mixed reviews, so I want to know if this is right for adults?

Can it stand up to the snow?

Would this be too big for a 12 year old? How about for a 7 year old?

are these washable?