No brand, will match with GUCCI Ophidia Cosmetic Case (both Large and Small), or other Gucci Ophidia series with greyish brownish leather. The strap is extendable Replacement Shoulder Strap 96-120cm adjustable length. Width is 0.6 inch made with real leather.

Measures 38-48" long end to end including the hardware. Measures approximately 1.5cm/ 0.6" wide.  The strap color is specific to GUCCI Ophidia series color combination.  You can attach the strap to  Gucci Ophidia Cosmetic Case to turn the cosmetic bag to a shoulder bag. Thanks for looking!