The moisture-wicking Cool Vent mesh top of the Harlem Beanie is designed to keep you cool and comfortable when it heats up in the kitchen. The Harlem Cool Vent beanies are made with a tough cotton/poly blend and a contrast mesh top to remain strong for any job. Each Harlem Cool Vent beanie includes an adjustable Velcro closure, which makes the size of this beanie as diverse as your staff.