Smartwool Women’s Isto Retro Beanie - NWT - Purple Eclipse - One Size The Smartwool Isto Retro Beanie is a fun and casual way to say your all fun and games with the big pom up top. This warm beanie is great for cold days when you can't afford to expose our ears to the rough cold. Classic styling brings casual style and optimal warmth while wearing the beanie during the cold winter season. Classic beanie with a big 'ol pom up top Merino wool blend allows for optimal warmth and heat control Merino wool includes anti-odor natural properties One-size-fits-all beanie for winter wear