After much searching i have not been able to find a retailer in the UK that sells Mylar/MBB IRL rather than online.
Im not prepared to order from ebay or amazon or anywhere that i have to pay by card and give address details for OpSec reasons and wondered if anyone out there knows something i dont.
Any help will be much appreciated.
Thanks
You obviously havent even looked. Mylar is a highly used packaging material. Its not a niche product for packing hipster internet tshirt brands.