Cortana Long Knit Arm Warmers with Thumbholes by Cortana are long knitted arm warmers crafted from a yarn that combines alpaca, silk and merino wool. Their standout feature is the integrated thumbholes that keep hands warm while leaving fingers free for use. Key attributes: Black | Negro | Alpaca, Silk, Merino wool | Thumbholes | Long length | Knitted construction | Composition & care: Alpaca | Silk | Merino wool