Keep it cool in a baseball vibe with this MLB Seattle Mariners 9FORTY Adjustable Cap from New Era. In an all Black colourway, this six-panel cap has breathable eyelets to the crown and is made from lightweight polyester. It has a pre-curved visor and an adjustable strap back for a comfy fit. Finished off with tonal New Era and Mariners logos. Hand wash.. Material: 100% Polyester