ARIZONA DIAMONDBACKS NEW ERA ALT AUTHENTIC COLLECTION 59FIFTY FITTED-ON-FIELD COLLECTION BLACK/RED 5950 RED Mesh pocket on the side

Mesh pocket on the side for water bottle storage

Mesh insert in knee for added ventilation

The bold design includes a unique colorway take on the Boston Red Sox logo that's embroidered on the front

So you're in love with the classic look of '80s basketball

Cool Base ® technology is made with interlocking moisture-wicking fabric for a lightweight

ARIZONA DIAMONDBACKS NEW ERA ALT AUTHENTIC COLLECTION 59FIFTY FITTED-ON-FIELD COLLECTION BLACK/RED 5950 RED Mesh pocket on the sideThe Arizona Diamondbacks Authentic Collection Alt 59FIFTY Fitted Cap features an embroidered Diamondbacks logo at the front panels with a matching MLB Batterman logo at the rear and a black undervisor.