The M/L is 17″ between the middle of the hipbelt to the shoulder straps, and 20.5″ to the load lifters, so it works pretty well in that range. Ideally >18″ so you have a bit of wrap over your shoulders and not more than 20″ so you’re not level or above the load lifters. So I’d say the ideal range is 18 – 20″ for the M/L but the marketing people at Drop decided to call it 18″ and then later changed it to a 17-19″ range.
So the M/L is probably more like a M with an 18-20″ range. Ideally we would have a L pack that is 2″ taller with a 20-22″ range. Due to minimum orders they only wanted to do 2 sizes, so right now we only have those, but  I hope down the road we can add that larger size. I totally agree it is needed to expand the sizing lineup.
Regarding timing, some of the wording might not be clear but the packs are expected in April 2020, not this August. The pre-sale ends on Aug 22.


