Tetrapocket: the tetrahedral pouch

Tetrapouches
This is a flat pack, L-shaped piece that folds into a self-closing, 3D pouch.
Tetrahedrons, four-faced pyramids, are used for a wide range of items from packaging (tetrapacks) to weapons (caltrops). This soft felt tetrahedron makes a good coin purse, or in a larger size with a strap attached, a clever shoulder bag.

Tetrapocket pattern (PDF 444 KB)

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