Supreme MLB New Era Cap Navy, Size 7 3/8. The item "Supreme x MLB New Era Cap, Navy (Size 7 3/8)" is in sale since Thursday, April 23, 2020. This item is in the category "Clothes, Shoes & Accessories\Men\Men's Accessories\Hats". The seller is "ivovt214" and is located in Stockport. This item can be shipped worldwide.