I have this hat in 3 colors! Just never reached for this! Still tags attached. Size Small/Medium UPF +50. Comfortable - and more colourful than ever - the Colour Block Sinsola is all about summer. The polyester plain weave fabric stretches for a secure fit, and is extremely light and breathable. A chin cord keeps it secure, and the wide laminated brim holds its shape but easily folds up to fit in a pocket or pack.