This is the very popular Chalk Shoulder bag from Standard Supply.
I believe it was a limited edition color.

It's a rare color that can no longer be obtained.

W180 x H260 x D100
Strap length: approx. 640-1150 (including hardware)

Item Description
This is a shoulder bag based on a chalk bag used for climbing, with modifications to the material and size.

Specifications
The shoulder strap is removable.
The opening features a drawstring closure.
There are slit pockets on the front and back of the main compartment.
A key strap is attached to the back of the main compartment, made long enough to use even with keys attached.

Materials
The main body is made of a fabric that is 60% cotton and 40% nylon, also used in outdoor wear. This material is lightweight, durable, and known for its vibrant colors. The back is treated with acrylic coating.
The trim is made of 210d (denier) nylon. The back is treated with acrylic coating.
The trim is made of cowhide leather.

Nylon sacoche with an adjustable shoulder strap.

- Color: Brown
- Design: Drawstring closure
- Strap: Adjustable shoulder strap
- Material: Nylon

Thank you for looking.
Color...Brown系
Stains/Tears...None
Material...Nylon