The bandana is removable. It has a concho-style button. The inside is mesh material, with an inner pocket for ice packs or insect repellent packs. [Odor-resistant & Antibacterial] It suppresses the growth of bacteria attached to the fibers and exhibits excellent antibacterial effects. It prevents the generation of unpleasant odors. PomPreece Color: Blue Size: Size 3 (Chest: 35-40mm) Material: [Outer] 70% Cotton, 30% Polyester *Only tried on. *Please refrain from purchasing if you are sensitive to items stored at home. *Please be sure to read the self-introduction section. We cannot do business if you do not follow the rules.