Home, Furniture & DIY. Bass Accordion Bag with Drawbar Thick Padded Piano Accordion Case Waterproof. Material: Accordion gig bag made of oxford cloth material, splashing water resistant, durable and sturdy. Novel Design: Accordion case with zippered pouch which can store some small accessories. Adjustable Straps: The accordion storage bag had double shoulder straps which are adjustable, comfortable for you to wear. A variety of carrying methods: the bag can be pulled, the three short levers can be adjusted freely, and there are sturdy pulleys at the bottom. Silent pulley, anti shock decompression, protect the contents of the bag. Can be carried on the shoulder and by hand. Double Zipper Shockproof: ...