Park Tool Spanner - Adjustable Pin For Adjustable Cups, Round Ends, Adjustable Width water and a chin strap that

and a chin strap that will keep you warm and your hat in place or may also be folded up on top of your head and snapped in place

Sealed cartridge bearings front and rear

Designed for competitive swimmers and athletes

Protection without sacrificing flexibility: 2-panel design for second-skin fit and additional front pad ventilation holes improve air circulation

Park Tool Spanner - Adjustable Pin For Adjustable Cups, Round Ends, Adjustable Width water and a chin strap thatInformation: This spanner uses hardened, replaceable pins nominally 2. 2mm in diameter. Designed for heavy duty use, the distance between the pins is adjustable, allowing use on virtually all hanger cups using pin holes.