All 7 3/8 size, all vastly different in size. WTF New Era... : r/neweracaps
New Era Hat Sizes - The Ultimate New Era Cap Size Guide
New Era Hat Sizes - The Ultimate New Era Cap Size Guide
vintage new era pro model blank fitted hat cap size 6 7/8 deadstock NWOT 80s NOS | eBay
What is the most common size for a fitted baseball cap? - Quora
Original 1939 Dated British Army Field Service Cap - Size 6 7/8
Kromer cap size 7 3/8"
New York Giants Mitchell & Ness Fitted CAP HAT size 7 7/8 | eBay
USHAKE Sun Cap Fishing Hat Baseball Cap with Face Neck Cover Flap Dark Grey at Amazon Men's Clothing store
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New Era Hat Sizes - The Ultimate New Era Cap Size Guide
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Detroit Red Wings NHL Vintage Fitted Hat Cap Size 7 7/8 American Needle | eBay
Hat Sizing Chart | How To Find Your Hat Size | Hats Unlimited
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Hat Size Fitting
New Era 59Fifty Cap - DIAMOND Chicago Bulls - 6 7/8 : Amazon.co.uk: Sports & Outdoors
Size Charts for Shibe Vintage Sports Apparel
Vintage New Era Pro Model Blank Fitted Hat Cap Size 6 7/8 - Etsy
![New Era Space SIZE 7 7/8 Jam 2 "Tune Squad" 59Fifty Men's Fitted Hat Blue/Gray | eBay](https://i.ebayimg.com/images/g/u7kAAOSw-bNjMisX/s-l1200.webp "New Era Space SIZE 7 7/8 Jam 2 "Tune Squad" 59Fifty Men's Fitted Hat Blue/Gray | eBay")