Cool yoga bags are hard to find!
The length is quite standard to fit a yoga mat (64 cm) and you can easily have a water bottle and some changing clothes in there too!
Wear it as vertically as possible across the back (picture). It has extra strong stitching by the strap.
Can of course be used for other purposes than yoga.
Width: 17 cm
Length: 64 cm
Strap length: 90 cm
Fabric: 100% cotton twill
Strap: 100% thick woven cotton