The strap is adjustable and detachable. Multiple pockets keep things functional.
 
Product Details 
 
Weight: 479g
Strap: 6-39.5cm
Height: 15cm, weight: 15cm, depth: 12cm
Shell: 100% cow leather
Trim: 100% cow leather
Lining: 64% polyamide. 36% polyurethane
Magnetic closure
Adjustable strap
Detachable strap
Internal slip and credit card pockets
One front pocket
Engraved signature metal hardware