Not leather
This is some man made material
The flaking on the straps and top handle and some of the straps is indicator to me that this is not leather

90’s patchwork vegan backpack
Adjustable straps
Cloth lined inside with zipper pocket
Sides of pack have pockets and one front pocket with flap and buckle
Flap top with snap button

Great condition minus the flacking mentioned above
Check photos

Measurements are

Length: 14. 5 in not including straps
Width: 14 in taken from middle of pack

This item is sold from a vintage boutique in Portland Oregon.