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The Joy of Bag Making, Delivered!
The Mystery Thread Box!
Building on the success of the Studio 7t7 thread, many customers have asked for more options. A 7t7 club member requested a mystery thread box and so the Mystery Thread Box was born! And it was so successful in 2025, we are bringing it back for 2026!
5 Cones of Tex 35 Thread (1800m)
5 Brand new colour ways
5 ways to level up your projects.
(Shipping end of August 2026)
Note: This is a one off box of thread, not a subscription.
If you would like to get join the regular Bag Maker’s Box please click here.
+ The first 100 people will get an extra surprise in their box!
Why Studio 7t7 Thread?
The Studio 7t7 thread is colour designed in house and is only available to us. We have chosen this thread for how amazing it works for bag making.
Tex 35 weight makes it suitable for domestic*, semi-industrial and industrial machines. It is a thicker weight that looks great on top stitching and is super strong for structural seams too.
Bonded polyester means that this thread has a polyester core and a bonded outer making it one of the strongest threads on the market. So strong that it is extremely hard to snap this thread with your bare hands.
Put these two characteristics together and you have a unique thread that is not only easy to use but that is really strong and gives you the professional finish you strive for on your makes.
Previously this thread has only been available as part of The Bag Maker’s Box and at shows. I am excited to bring this special box of mystery threads to you as a one off box and know that it will bring you a new level of creativity to your sewing projects.
*Some domestic machines have been found to not like this thread - this is often vintage machines and is quite rare. Please note that your machine may not be compatible for both top and bobbin thread. However we do recommend you use it in both top and bobbin on your machine and changing the bobbin to another weight should be a last resort to avoid inconsistancy in stitches.
Shipping late August 2026
There are 9 threads in the Studio 7t7 collection as shown below...
This box will include 5 brand new colour ways.
Watch the unboxing for the 2025 box here:
FAQ
Can I use this thread in a domestic sewing machine and how?
Yes! Tex 35 thread is suitable for all sewing machines - however some vintage machines don't like it. You should use it in both the bobbin and top thread. You can use a cone holder for domestic machines (available on amazon) or even a mug to hold the cone in before threading it into your machine.
When will this box ship?
Boxes will ship in late August 2026, the pre-order is running only until July 15th 2026.
I already have thread from you - is this different?
These are brand new colour ways, new for the 2026 Mystery Thread Box. The 2025 box can be seen in the video above but this box will all be different.
You will receive 4 x variagated spools and 1 x neutral colour spool. Each spool is 1800 metres of thread.
Is shipping included?
Shipping within The UK is included in the price of this box. International shipping is calculated at checkout. Please note that any customs or fees from shipping internationally regretfully are the customers responsibility. Please also see the USA/EU FAQ below if that is relevant.
Do you ship to The USA/EU?
We currently do not ship to the EU due to GPSR. You are welcome to ship to a UK address if you are in the EU (please check out the rules/info on this as rules can vary) and have this forwarded on but as a business we can not ship to the EU under this new directive at this time. We ship internationally outside of the EU. However due to the logistics of tariffs with the USA we are not currently shipping to the USA.
Please note that any customs or fees from shipping internationally regretfully are the customers responsibility.
Is this a subscription?
No, this is a one off purchase with a one off box. If you would like to check out The Bag Maker's Box which is a regular mystery box of bag making goodies please click here.