After a few longer and more easygoing outings as well as some shorter, faster adventures, I am quite impressed with the Transalper 18 Backpack. For my tastes, the Safety Box could still be a little roomier so I can access my things there more easily. That is indeed the case with the winter packs. What I didn’t personally like so well was the SpeedBottle holder. The holder on the Transalper 18 backpack is made of neoprene. It indeed holds the bottle firmly, but after pulling it out, the neoprene makes it quite difficult to get the bottle back in. Just to mention that briefly in passing. Despite that, the Transalper 18 Backpack is really quite a fascinating pack for quick workouts and outings.