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DEF CON 23 T-Shirt XS or S & Gold Membership Certificate
To celebrate EFF's 30th anniversary, we're offering vintage DEF CON T-Shirts with a certificate that you can redeem for a year-long EFF Gold Level membership!
EFF created this Crypto Noir design for DEF CON 23 and it features a puzzle incorporating encryption. You can read more about the design and the puzzle solution here! You can also get our newest member t-shirt by going to our donate page!
This t-shirt comes in a super-soft Slim Fit for all bodies. Be sure to check out our size chart. Size options are limited, so act fast!