N'Ice Caps Little Boys and Baby Sherpa Lined Micro Fleece Pilot Hat Mitten Set Fully sherpa lining, very soft and comfortable Adjustable hook and loop chin strap on hat Elastic on mitten wrist Hanging braided tassle on hat Mitten sizes up to 24 months do not have thumbs 1-3 months 3-6 months 6-18 months 2-3 years 4-7 years Double the warmth Double the wind protection Naturally water resistant, and stays warm even if the outer layer gets a little wet Hook and loop chin strap is easy to apply and works well to keep the hat on when playing outside, or bundled up in a stroller A little bit of elastic at the wrist helps to keep these mittens from wiggling off