Not too big and not too small, the Heli Pro 24L falls right in the Goldilocks zone of backcountry packs. This seek-and-destroy powder package is big enough, but certainly not too big. Purpose-built snow tool sleeves keep shovel and probe at the ready, a large fleece-lined goggle pocket and deployable helmet carry neatly stow essentials on the go, and a hydration sleeve doubles as laptop storage off the mountain.