After a few years extensively using Kriega’s backpacks, I thought it would be good to share with you some of my thoughts. If you want the short version, it’s easy: get one, it’s a fantastic piece of kit and you won’t regret it. If you are interested in the why… keep on reading. Let’s start with the obvious, the less you have on your back, the better it is… anyway, for the type of riding I do, there are some things that I would rather never leave on the bike (passport, wallet, phone and so on). When traveling, as well as doing hard daily enduro. On top of that, once you start carrying a bladder, there is no going back.. Before the Kriega, I used to use cheap backpacks and water bladders.. Needless to say, the cheap bladders wouldn’t last more than a season before starting to leak. After few years I decided to switch to the Kriega backpacks and never looked back. For this review I’ve used the R15. This is the perfect size for me… bigger than a simpler bladder, and not as big as a proper backpack such as the R20-35. I don’t know you, but if I have more space I tend to fill it. Test field This is my go-to backpack when I get on a bike. Been using this every weekend when riding enduro. As well as 1-2 weeks trips on my rally bike. Damn it, since you hardly feel it, I even use it when skiing Generally I carry only the basics with me. Carrying the water bladder, wallet/phone, waterproof shell, spare gloves, a snack, and, if I don’t carry extra bags, a small emergency tool kit. When riding enduro, I tend to pack my bags extremely tight.. And you don’t want to open them during a ride.. So everything I need during the day pretty much fits into the bag. Expandability It features latches on the side to make it more snag. I’m not a huge fan of the latches, since you tend to have something flapping a bit (they have some clips to keep it together.. But doesn’t always work). I thought about it, but would not know how to improve it. Elastics would have worked better for a while, but for sure would not have the same durability. I’ve always been afraid to catch branches while riding single tracks in the woods, but to date it has never happened.. The advantage is that when fully expanded you have quite a bit of space. I’ve been using the backpack when traveling and I managed to fit my laptop and all my camera gear (mirror-less, few lenses, gopro, but tons of accessories) Water repellent The only part of the backpack that is waterproof is the small internal pocket. This is where I keep all my documents, and has given me peace of mind in case the bladder would start leaking (not that it has happened). The rest is only water resistant. I’ve always been confused with water resistance… I’ve always been on the fence… either make it waterproof, and leave it.. Till you get in deep mud and you start appreciating it For the days that it’s properly pouring down, I simply wear it under my waterproof shell. Attachment This is the smartest part of the backpack and the reason I love it. The attachment is genius. Simple to adjust and keeps it fit and snug, and you stop feeling it after a while. You can see how the competition has been ‘taking inspiration’ from it. In Sweden, where I currently live, USWE is big on enduro backpacks.. And they recently redesigned all their products to feature an 'upgraded'/'familiar' system The R15 also came with a waist strap.. But honestly I never saw the need for it Is it the most comfortable backpack to take on and off? For enduro riding yes.. As a normal backpack definitely not.. But yet again, that’s not what it’s meant for. Accessories Bladder. I can’t properly compare this since except for this one I’ve only used cheap bladders… and they suck. What I can say is that it’s not leaking after 3 years of hard use.. The isolation on the tube really works! You don’t think about it till you are riding in the winter at -10 and you try to suck ice cubes.. When hot, I usually add ice cubes to the water to keep it cool, and thanks to the insulation I’m not drinking tea. One thing that could be improved is the way the tube attaches to the backpack. It uses velcro, but a good piece ends up flapping about.. Also, the velcro needs to be kept free of dirt.. Back protector. I realized that if I’m sitting on the bike, I always wear the Kriega! Recently I’ve added the back protector insert, removed the one in the jacket, and so far I really like it. Takes up a bit of space in the backpack but allows more airflow for the jacket. Of course, I don’t use it when riding hard enduro.. There I wear I complete protection west. Conclusions: It’s an amazing product.. Not the cheapest but worth every cent. Hope this wasn’t too long If you have questions.. shoot..