Boucle ArmwarmerKopka Accessories knit arm warmers are made of boucle yarn and designed with a loose hand opening, making them easy to layer with on colder days. The loose shape and unfinished roll up edges are synonymous with the brand's classic lived in aesthetic. Arm warmers Thumb hole Materials Fabric Content: 50% acrylic, 20% alpaca, 20% wool, 10% nylon Size Guide One size fits most. For additional size information, please visit our size guide or con tact