Absolutely Amazing 4.9/5
Material: The material of the bag is immaculate. You can see the quality of the leather and the consistency of the stitching, you definitely notice the lack of Acrylic on the edges so it's soft. The leather was perfect with no stretching, and the inside feels flexible yet sturdy.
Functionality: with so many convertible cross body/backpack purses being awkward and wonky, this one converts seamlessly and fits nicely on the back and shoulders. When on the back, it doesn't hit me in the back with every step so it's fitting for me being 5'2 and average weight. Straps don't dig either which is something I'm very particular about. Everything stays secure in the front pouch and the zipper is very sturdy. My phone stays in the phone pocket pretty well, you'd have to shake the bag to really let it fall out.
However, why this isn't a perfect 5/5 for me (and I'm aware I'm SUPER picky so I don't want to take that away from an incredibly well-made product) is the zipper has a little tag at the end, and it's a little difficult to zip close when it's all the way open. I almost always have to use two hands to zip it shut. Tucking in the tag helps, but is just a very very minor inconvenience with an amazing bag that is stylish, high quality and has great ethics. I look forward to purchasing more from this brand. 5/5 would recommend to people.