PPC18: The Prototype


in our last post I told you about the inspiration for our next design which can be used as a tech gear bag or even a cosmetic case. We also showed you the original sketches.

And now… I’m ready to show you the very first prototype I made!

But first… remember that this is a prototype bag. The primary purpose of a prototype for me is to get all the main pattern pieces sized correctly (if not for this sample, then for the next), and to place my notches. The fabrics are scraps from my stash, the zippers have flaws, and the bag is basically unlined. I just don’t like to waste good materials on a prototype!

Now this may look like a very basic design to you, but here’s the deal…

The inside of this sample will eventually have a lining that’s installed in a way which is a big departure from our norm. That is… all the seam edges (for both the exterior AND the lining) will be located on the inside of this bag where we’ll bias tape them to conceal the raw edges. This just makes for more efficient storage possibilities which is pretty important for a storage unit like this!

There’s actually two completely separate chambers in this unit, each with its own zipper which comes pretty close to spanning from one bottom side edge to the other. This allows for each compartment to open VERY wide, BUT, not so wide that it allows the contents to tumble out the sides (I’ve had storage bags that do this and it’s very annoying!).

I’m thinking that I can eventually include some interior mesh pockets for smaller items and maybe some stitched-in elastic slots on a side wall or two. And I especially  like this size for tech gear. It should also accommodate quite a few cords, both long & short.


I’d eventually like to include a few other sizes in this pattern in order to provide storage for other types of items. Right now I’m thinking a wider tote (more along the line of a men’s shaving kit), and a shorter unit (perhaps for small cosmetics) and maybe even a taller one (for small bottles & tubes).

So… all in all I’m satisfied with this effort, but obviously I’ll make a few changes in the next round. First of all I’ll put a complete lining in it, plus….


  • I’ll use a lighter weight interfacing. These seams were a tad bulky, even without the added lining layer. There’s a few products I need to experiment with between now and then but I will.  🙂
  • the strap needs to be shorter and placed differently.
  • the center divider (which you can’t see in these photos) is too flimsy. Maybe I’ll try some fusible fleece in this area for the next sample?


And now…. it’s YOUR turn!

I’d love to know what you think of our new design at this point in the process? Does these seem like items you would find useful? And what ideas might you have for other sizes or interior accoutrements? And remember, we love reading your comments and answering your questions too, so please feel free to either or both  about these or any other aspects of this new design in the space provided below.
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19 Comments So Far, You're Next!

  1. I’m thinking this would make an excellent sewing notions bag as well. Although I have lots of tech gear also. Waiting to see what the interior looks like. Keep ’em coming!

  2. Love the idea of a taller version for cosmetic bottles, etc when I travel. I have some products that don’t come in a “travel size” so they need a bit more space in my bag.

  3. I want something like this with a strap-and-buckle for a waist pack. When I go out for a day walk, I need phone, battery, wallet, pill container, pen, small notebook, tissues..and having two pockets would be better than the giant one-pocket waist bags I have now.

    • I understand the need for sure, BUT— for this i would recommend one of our other products, such as the HipBag Hybrid. The problem with using a long slender bag w\like this for that purpose is that it will need to “curve” around your waist, however, the items you put into it, do NOT curve at all, so its going to look or behave wierdly. Make sense?

  4. My first thought when I look at this is: with the placement of the handle it doesn’t look like the compartments will open very wide. Wondering if by putting one end of the handle on the center section at least one side would open flat to see what is in there and pull one cord out without pulling all of them out to get the one needed.

    Also, an ID spot on the outside might be helpful–either to put your name or to label what’s inside if you carry multiples of these.

    • This little unit is very flexible and not stiff at all, so yes, it opens VERY widely. It’s not the strap that will limit how wide it opens, but the zipper length and how far down the bag side it extends. (I really do not want it to open out flat. That’s the problem I’ve had with commercially made items.) But do stay tuend as we reveal much more in future posts? 🙂

  5. Katinka Aitchison

    Hi StudioKat / Kathy
    Love this concept and really looking forward to its fruition. May I ask that you consider putting an option for adding a strap? This bag could land up quite heavy and placing the finished article over/across the shoulders would be most beneficial. Thank you.

    • Hmmm… I can see where there might be a limited call for that option. I’ll consider it, but probably leave it to the discretion of the consumer to lengthen the strap that’s already there. 🙂

  6. A great idea! Especially the two compartments! Maybe 3 could work? The middle being slimmer for I.D., cards, money. I love little bags! It looks like the zippers unzip down into a small pocket at the end. If so, smart thinking! Easier to get inside the bag. I look forward to seeing updates and/or the finished product!

  7. This would be great for my insulin pump, meter and cgm supplies.

  8. Just the kind of bag I need and would love to make. I could use one for knitting accessories one side and small project the other.

  9. I like the look of this bag and love the idea of different sizes for different uses!

  10. I have 1 grown grandson and 4 growing great grandsons and would love to make them one (or more!) of these for ditty bags!