Stem bag M

The stem bag is what bikepacking started with. That's how I started too. Over 7 years, I've made more than 1,000 of them and tried out many designs. But the basic idea remains the same: the ability to use onehanded and stuff an unlimited number of candy wrappers into elastic pockets.
The side walls and bottom are filled with dense foam. This provides some insulation, but mainly helps maintain the shape.
The standard size for these bags is large enough to easily fit 0.75 liter water bottle and, if necessary, a 1L soda.

This is already the third version, not counting minor changes. Previously, we made left and right bags, but these can be hung on either side of the stem.

Materials: various
Fittings: Woojin
Weight: 120 to 220 grams depending on materials