The Federate Adapt from Kathmandu converts between three separate modes: a 28L daily carry bag, a 38L carry-on travel bag, and a 50L check-in bag.
- Extreme conversion… from daily carry to carry on bag to 50L check in bag. This thing has tons of room.
- Very comfortable back panel… very breathable and cushy. Also nice to have hip-straps built in with the ability to hide them away.
- Very limited external access… this is my big gripe with this bag (but it does the other stuff so good that this bag is a real option for lots of folks).
Other Bags to Check Out:
An extremely solid everyday backpack suited for carrying lots of gear or compressing down to a minimal daily carry haul. One of my favorite all-around bags.
The X25 from RiutBag is an utterly functional travel and daily conversion backpack that also has an important security feature.
The Tristar from Tom Bihn is an excellent almost business-class duffel/backpack conversion bag that makes for excellent use in transit.
The Setout Laptop Backpack from Tortuga is an excellent bag for minimal travel AND daily carry.
The Viken from YNOT is as simple and sturdy a duffel as a modern urbanite could ask for. And it expands. Just lovely.