This double case 320S for violin / viola by the Italian master Maurizio Riboni (Cremona) have a very high standard of quality. Careful craftsmanship with exquisite materials result in a violin case, which convince in design and functionality. The absolut elegant Double Case.
This case has additional upgrades: d-rings for backpack or side carrying style, as well as full length music/accessory pocket on the exterior.
*Picture is of the actual case for sale, not a stock photo*
Basic features:
New developed veneer shell: strong and light at the same time, own production!
Inner lining made of soft anti-stratch fabric
Tear-resistant Cordura® cover with water-repellent Teflon™ treatment
Blanket
2 big accessory pockets, self-closing (picture 2)
Subway strap (easy carry in bus and metro)
Space saving sizes, very easy to handle and ideal to take on flights
One simple shoulder strap
4G GPS device (optional, license fees are incurred). Read HERE.
Weight: ca. 3,2 kg
Sizes: 77cm x 28cm x 17cm 
The 320S case can hold violas up to 28.5/29 cm wide
Concerning the body lenght: no "limits"