A hat that can be worn comfortably for everyday use or when commuting by bicycle.
The fabric is water-repellent, so it can withstand light rain.
Suitable sizes (head circumference): M (56-58cm), L (58-60cm), XL (60-62cm) Brim length: 6.5cm
The chin strap is removable
It is pocketable, so you can store the device in the inner pocket, and fold it up small and slip it into your bag when you go out in the summer.