FURLA Straw Hat There's a Velcro adjuster on the inside for size adjustments. The size is indicated as S to M. Purchased a few years ago and only worn indoors, never used outdoors. It was stored flat with paper inside. It will be shipped in a large cardboard box without being crushed. Overall diameter: Approximately 36cm Inner diameter: Approximately 17cm Height: Approximately 13cm Material: Straw Color: Brown