According to the manufacturer

It is not designed as a primary energy source

Designed in California

or emergency bag

Supports your recovery

T8 Trail Cap Size:One Size According to the manufacturerThe T8 Trail Cap is perfect for training, racing, or simply as sun protection in the mountains. Thanks to its pliable brim, it can be easily stowed in shorts or trail vests. Adjustable stretch strap with snap closure Breathable mesh side panels Moisture wicking internal sweatband Flexible brim easy to pack away Machine washable The T8 Trail Cap is functional, lightweight, and stripped down to the essentials just what you need on the trail. Whether