According to the product details, roll-up sun hats are made from straw and from tightly woven paper straw.
These are one‑size‑fits‑most adult hats, with listed head circumferences of approximately 22 to 22.8 inches.
Brim widths reported across models range from about 4.5 inches to 4.9 inches.
Yes. Many roll-up visors include an open-top or ponytail opening plus adjustable back closures (hook-and-loop/Velcro), allowing hair to be worn in a ponytail, messy bun, or down.
Product descriptions list UPF 50+ sun protection (also referenced as UV/UPF/SPF 50+ in some listings).
Care instructions recommend spot or wipe cleaning (use a damp cloth) and then line drying or laying the hat flat to dry.
Common closures include hook-and-loop fasteners and adjustable Velcro tape headbands; some styles also feature a back bow-tie accent for additional fit or style.
They are foldable, rollable, and packable — designed to be rolled up and carried easily in purses, handbags, totes, or luggage.
Comfort features include lightweight, breathable construction, an open-top design for airflow, and a sweat-wicking band to help keep the forehead cool and dry.