I've taken this bag through a challenging 7 day, 170km fastpacking hike in Corsican mountains. I spent countless hours for finding a perfect pack and ended up choosing the Trailblazer 20 LT.
The positive
* Very comfortable to wear
* Very lightweight
* Very small
* Looks great
* Waterproof even through strong rain.
* Pockets on the straps are very good for sunscreen, gloves, phone etc
* Side pockets are stretchy and could fit 750ml bottles easily
The negative
* Pole attachment system is pretty useless for running. The poles kept bouncing around no matter how hard I tried. I ended up running with poles in my hands. I'm not sure how they do it in the promo video. Good enough when you are walking though.
* I almost lost the chest harness straps twice. When you take the bag off, they can easily detach.
* The chest harness straps loosen after a while. Throughout the day I needed to tighten them.
* Probably due to constant loosening and tightening they are already chafing after my first hike.
* A few seams have torn already
* The main compartment locking clip takes time to unlock in a hurry, as you have to press on the narrow edge. My sleeping bag manufacturer with a similar system has figured this out - make the user press on the wide edge to unlock.
The so-so
* I understand this is due to unisex size, but I feel there are a little too many straps dangling everywhere
