Earbags Bandless Earwarmers are simple wraps over your ears. Gently slip them on and snap them into place for a secure, warm, comfortable fit. The exterior is made from Polartec polarfleece, while the interior uses Thinsulate insulation. This combination keeps out the winter wind and keeps the ears warm. Ultra snug and featherlight, they are convenient to carry along with you. Sizing (height of ear, measure your ear top to bottom): Small: Ears 2 1/4" or less (fits children and small adults); Medium: Ears ranging from 2 1/4" to 2 3/4" (fits 80% of adults); Large: Ears measuring over 2 3/4 in.