I ended up with a new, unpadded vinyl upright bass gig bag. I don't play upright... maybe one day. I thought it was 3/4 but when I took it to a guy to sell locally on Craigslist, it was too short. He thought it was 5/8 I'm having trouble finding what a common length is for a 5/8. I understand there is some variance. It's about 69.5 inches laid flat along an outer seam. Can anyone tell me what size might be a good fit? I'll probably post it in the classified once I know what it is. Thanks!