Marmot Olden Polartec Beanie Black One Size. Pull this super-soft lightweight hat over your ears for uphill slogs or cold afternoons running errands or logging miles. Wear this single-layer sweat-wicking beanie under your helmet so your ears and head stay mega warm to withstand mountaintop gusts steep downhill trails or chilly headwinds on your daily bike commute. Specifications for Marmot Olden Polartec Beanie: Manufacturer: Marmot Gender: Unisex Age Group: Adults Hat Size US: One Size Color: Black Fabric/Material: Polyester Application: Outdoor Weight: 30 g Men's Clothing Size: One Size Activity/Occasion: Outdoor Features of Marmot Olden Polartec Beanie Single-layer lightweight beanie fits under your helmet for a super soft moisture-wicking fit Package Contents: Marmot Olden Polartec Beanie Marmot M13136-001-ONE: Olden Polartec Beanie Black One Size