Add an extra layer of warmth with Smartwool The Lid Beanie. This beanie features a soft knit, pull-on design. Stretchy, soft, lightweight warmth when you need it and folds up and fits in a pocket when not in use. Jersey knit construction with interior headband liner. 55% Merino wool, 45% recycled polyester. Machine wash cold, dry flat. Imported. Measurements: Circumference: 20 in