I bought this bag for my dad and he absolutely loves it. We recently did a partial Route 66 road trip and he brought as his main bag, He filled it with packing cubes and still had some room on the top to stuff his rain jacket. The quality is top notch, which really you could say about all of Guy's bags.

This bag provides a lot of room on the inside. As well as on the outside as the side pockets are quire generous in size.

If you are looking for a bag with old school charm, masterfully crafted with ample space. This is probably the bag you want.

I have a lot of backpacks at home - but this one here is something else!

Rright from the unboxing, I was really impressed with the quality. I’ve watched almost all the YouTube videos about MM’s packs, but seeing and touching it in person is a whole different experience. The level of thought and detail that went into this pack is immediately obvious. You can tell it’s designed to be both practical and comfortable, with clever solutions everywhere you look.

For example, one side pocket has a space behind it that’s open all the way through, making it easy to slide in something larger like a paddle or bow, while the other side pocket is closed to hold shorter items securely. Additionally, the two large outside pockets each have smaller pockets on their exterior, which are perfect for storing smaller items and keeping them within easy reach. You can really tell how much care and attention went into this pack -it’s like everything has a purpose and works together perfectly :)
I was a little worried I’d miss having a hip belt since I’m so used to using one, but the pack sits high on the back, and the shoulder straps are so comfortable that I honestly don’t feel like I need one!!
I took the M3 Junior out for a 1.5-hour walk this morning with around 16 kilos (35 pounds) in it, and it was really comfortable! I used a little folding mat (the German BW Faltisomatte) at the back of the backpack, just like MM suggested in one of the videos, and it worked perfectly.

One of the things I really like about this pack is the flexibility to sort of build your own inner frame to suit your needs. For me, the folding mat works super well and adds just the right amount of structure and support.

Overall, I’m really happy with the M3 Junior. I’ll write another review after I’ve used it for a few months, but first impressions are excellent.

One thing is for sure - this pack is made to last. I can already tell it’s going to outlive me, and I’ll be able to pass it down to my future kid, Bushcraftsman Junior :D
Best, 
Bushcraftsam