The New Smartwool The Lid Hat (Dark Steel Blue) Beanies, unisex, Hats , Knit , Beanie, One Size, true, For cold weather or covering up bedhead the versatile Smartwool The Lid Hat beanie fits your noodle-covering needs. Single-layer jersey knit construction. Interior headband liner. One size fits most. Shell: 50% merino wool 50% acrylic. Lining: 100% merino wool. Machine wash cold on gentle. Tumble dry low. Imported. Measurements: Circumference: 20 in