There is some yellowing, but it isn't from sweating, just from discoloration from being old. The item "San Jose Sharks Sports Specialities Hockey SnapBack Hat Cap Brand New Rare NHL" is in sale since Tuesday, May 19, 2020. This item is in the category "Clothing, Shoes & Accessories\Men\Men's Accessories\Hats". The seller is "bojomcfly" and is located in Northbrook, Illinois. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, ...