This Purse is hand dyed material. The shoulder strap is approx. 40 inches All of our purses and handbags are fully lined between the lining and the exterior wool with the RFID blocking fabric. RFID fabric is used to help protect your credit cards and any other microchip info from being scanned by those pesky thieves. Many of our purses also have zipper closure pockets inside for extra storage. All of our purses and handbags have a zipper closure, and the flap has a magnetic clasp. All of our straps are either a strong nylon webbing, a webbing covered with leather (recycled from leather coats), or a wool and leather combination. (See close-up photo for the purse you're interested in). All of the purse flaps are hand-beaded along the edge and some purses are also hand beaded along the outer edge for more durability. With all the leather and beading, machine washing is NOT recommended. spot cleaning is recommended.