Holds 8 cards, 12 bills, and 15 coins while staying under 12mm thick. The ultimate "thickness-restricted" solution minimalists choose last.

"I want a thinner wallet, but cutting down to just 3 or 4 cards isn't realistic..." For minimalists facing this dilemma, we want you to discover Tenuis. We reveal the secret behind the "Twin Card Slot" that redefines card storage.

Why do traditional wallets get thicker when you add cards?
Traditional wallets stack cards sideways, as shown below. Stacking five cards adds the thickness of five cards; stacking eight adds the thickness of eight cards—adding several millimeters. Even when stacked sideways, the center inevitably thickens.


Tenuis The solution: "Parallel Configuration
"
Tenuis features two card pockets placed side-by-side.

・Holds 4 + 4 = 8 cards total, but only has the thickness of 4 cards.
・Since cards don't overlap, the thickness is distributed. ・Card thickness
is 0.76mm; 8 cards would be 6.08mm → 4 cards is 3.04mm


Achieve minimalism
without "decluttering"
Driver's license, insurance card, My Number card, spare cards... Carry these 8 essential cards without worrying about thickness. Tenuis proposes "sustainable minimalism" without extreme austerity. Of course, those wishing to declutter can make it even thinner depending on usage.

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