It has been already 3 years after we published a product called Tenuis - the thin wallet in
early 2016. now, we want to share some aspects of the story of Tenuis here after while.
At the time, though we had made several thin wallets made out of canvas and cotton fabric,
those were still not thin enough because fabric's edge part normally needs to be folded then
stitched, it makes folded rim part still thick, then we found an interesting material called "Tyvek".
Tyvek is waterproof, and not-tearable and ultra thin material used for architects, protective
clothing and so on, we focused on its features and made first thin wallet Tenuis. the material is
under 0.2mm thin, can make much thinner wallet with this material than with ordinary cotton
canvas which is 0.4-0.5mm. but we still had to count how many layers can be included in
whole wallet, finally made 6mm wallet with Tyvek for inside and paraffin waxed cotton
canvas for outside.
To be continued.