1）Strong compressive resistance.

2）Wonderful workmanship.

3）Velcro Neck Straps & Padded Neck Restraint. 

4）Compartment room for Rosin & Accessories. Buckle for Secure Closure

5）Weight: about 2.8kg

6）The shoulder straps designed for comfort, according to the structure of the human body
7)  Upgraded backpack with music sheet bag , button detachable design
8）4pcs bow holders