Hi @Mhansonmeier - Thanks for reaching out!
Osprey updated their Aether/Ariel lineup this spring that made a few changes to the current offerings. The pack most like the previous Aether 70L model is the Osprey Aether Plus 70 Pack. This has the detachable day pack and is currently available in size small.
There is also an Osprey Aether Pro 70 Pack, which has a removable lid and is the lightweight version of the Plus 70 mentioned above.
Both of these packs are imported as there are not domestic options being offered.
Hopefully this helps!