Gregory Citro 24

Backcountry.com says:
With so many technical daypacks out there using overly extravagant features, it's refreshing to see Gregory reeling it back in with their Citro 24L Daypack. Made to get the job done effectively, the Citro features enough room for your 10 essentials and then some. And on top of that, it has a great back panel system to keep us cool and ventilated.