The shoulder strap length is not adjustable, so you adjust it by tying it. I like the cute pattern on the inside, but I've kept it stored away because I didn't like that the strap was a bit long and I had to tie it. I'm not sure if the material is real leather, but it's quite light, so it might not be leather. Size: Height 22cm, Width 24cm, Depth 11cm, Belt 128cm The size is approximate because it's a rounded, drawstring bag shape.