Fast shipping and excellent product! Fast shipping and excellent product! The small expandable pack is perfect. Wise design and well made. As a 70+ woman traveler, I pack light to go to Europe often with only carry on luggage. This pack is the best.

Fantastic Product and The process was smooth and informative. The KNACK website provides various product info and allows easy comparison of their bags to determine what product will meet ones needs. The picture of the product on a persons back was extremely helpful since there were models of different heights. The bag itself is fantastic! It is sturdy, sleek and offers plenty of room. Once the extra storage section is opened, there is so much that can be put into the bag. I was able to pack 4 days of shirts, undergarments and socks into 1 small and 1 medium KNACK packing cube, which fit perfectly in the KNACK expandable section

My First Order My First Order After trying several attempts to do an order, I was greeted by a return telephone call. Amanda's concern with my issue and her willingness to give me the customer support I needed, 5 star was well deserved.

Great overall bag with lot's of… Great overall bag with lot's of capacity when expanded but also a slim profile when zipped up. Very comfortable and clearly high quality design and manufacturing. Happy overall. Two things I would put on my "wish list" 1) an easy access external pocket. 2) a better mesh pocket system for cables. Right now you just have to drop the larger cables i.e. Mac power cords into the based of the front pocket and dig it out along with the rest of the cables when you need them.

Very easy to navigate the website Very easy to navigate the website. Pictures and dimensions helped make the perfect purchase. Waiting for our knack backpack to arrive!