Mind you, his gravel bike will soon have at least 2-3 bags.Because a hydration pack is "cooler"? š
I'm as roadie-traditionalist as anyone, used a Camelbak for 15 years, and I'm all-in on the functionality of the hip pack for riding in the woods.
I am looking forward to trying this, but for my normal 2 hour rides, I probably won't need it.