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When we bought a new pack for my wife in 2013, the (obviously experienced) gearhead steered her towards a Gregory pack and away from an Osprey, pointing out that her natural back curvature was not very dramatic.

Is this really a thing? I have noticed that Deuter and Gregory seem to have flatter harnesses than Osprey does. But I'm about to buy a new pack and haven't really noticed any discussion of this in my research.

My question is mostly does back curvature matter at all? I saw someone treat it as the primary consideration at one point, but I haven't seen it mentioned at all in my research.

When we bought a new pack (50L+, multi-day backpacking) for my wife in 2013, the (obviously experienced) gearhead steered her towards a Gregory pack and away from an Osprey, pointing out that her natural back curvature was not very dramatic.

Is this really a thing? I have noticed that Deuter and Gregory seem to have flatter harnesses than Osprey does (see pictures). The models I'm most specifically interested include:

• Osprey Atmos 65L

• Deuter Aircontact Lite 50+10L

• Gregory Zulu 65L

But beyond these specific models, my question is mostly does back curvature matter at all? I saw someone treat it as the primary consideration at one point, but I haven't seen it mentioned at all in my research.

When we bought a new pack for my wife in 2013, the (obviously experienced) gearhead steered her towards a Gregory pack and away from an Osprey, pointing out that her natural back curvature was not very dramatic.

Is this really a thing? I have noticed that Deuter and Gregory seem to have flatter harnesses than Osprey does. But I'm about to buy a new pack and haven't really noticed any discussion of this in my research.

When we bought a new pack for my wife in 2013, the (obviously experienced) gearhead steered her towards a Gregory pack and away from an Osprey, pointing out that her natural back curvature was not very dramatic.

Is this really a thing? I have noticed that Deuter and Gregory seem to have flatter harnesses than Osprey does. But I'm about to buy a new pack and haven't really noticed any discussion of this in my research.

My question is mostly does back curvature matter at all? I saw someone treat it as the primary consideration at one point, but I haven't seen it mentioned at all in my research.

When we bought a new pack for my wife in 2013, the (obviously experienced) gearhead steered here towards a Gregory pack and away from an Osprey, pointing out that her natural back curvature was not very dramatic.

Is this really a thing? I have noticed that Deuter and Gregory seem to have flatter harnesses than Osprey does. But I'm about to buy a new back and haven't really noticed any discussion of this in my research.

When we bought a new pack for my wife in 2013, the (obviously experienced) gearhead steered her towards a Gregory pack and away from an Osprey, pointing out that her natural back curvature was not very dramatic.

Is this really a thing? I have noticed that Deuter and Gregory seem to have flatter harnesses than Osprey does. But I'm about to buy a new pack and haven't really noticed any discussion of this in my research.