For our bags we are using cordura, inside with the color avocado , outside black.
Cordura is a very strong and resilient textile made of polyamide fibres, which offer amazing strength and resilience to wear and tear and other mechanical damages.
The edges of the bags are made with webbing from polypropylene , 4cm for bags and 5cm for the shoulder straps.
2cm thick sponge made from polyurethane ( partition with 1 cm, bag for bars with 0,5 cm ) protects our soft bags from every damages.
A special feature of our bags is the foam sewn into the edges, which prevents them from slipping and also protects your instrument at the corners where it is most sensitive.