I have used a rich forest olive leather combined with rich tan cow hide for this collection.

Magnetic clasp under the feaure ring to secure lid. 

Dimensions:

Small: 18cm high x 23cm wide

And back pocket for phone and/or keys.

Medium: 20cm high x 23cm wide x 4cm depth

And back pocket for phone and/or keys, also inside sleeve pocket with card compartment.

Large: 27cm high x 25cm wide x 5cm depth

And back pocket for phone and/or keys, also inside sleeve pocket with 3 card compartments.

Both medium and large sizes have adjustable cow hide leather shoulder straps. Small size has a 115cm length strap.