10 November 2021

Indigo's Been Upgraded! NEW Add-on & UK 16-34 Size Band is Here

YASSS, our best-selling Indigo smock dress sewing pattern in sizes UK 16-34 has arrived, but that's not all folks... Our popular Indigo Add-on sewing pattern has also been upgraded to include a dreamy puff sleeve - available in both our new UK 16-34 size range and our existing UK 6-24 size range - yay! 

If you're not already familiar with them, you're going to love the Indigo and Indigo Add-on patterns. Indigo is the perfect top or dress to wear at any occasion, in any weather, and in looooads of different fabrics. Going out with friends for lunch? Throw on an Indigo! Doing the school run? Indigo! Living your best life at home when it's cold and rainy outside? Indigo! Ok you get the idea, Indigo is as versatile as she is beautiful. 

There's never been so much exciting content to cram into a blog post, so get comfy and get excited because this is one pattern extravaganza you don't want to miss...

Who doesn't love feeling comfy and stylish? This is exactly what Tilly had in mind when she designed Indigo. She found herself craving easy fitting garments that made an impact whilst still being oh-so-comfortable. And as they say, the rest is history. Indigo is an easy-breezy top or dress with gorgeous added details to make your heart flutter.

Indigo has a bodice shaped with bust darts and has a gently curved empire waistline, with a floaty gathered skirt. Make her as a top with a dipped gathered hem or a dress with added roomy pockets, with the option of either slim bracelet sleeves or whimsical flounce sleeves.

And, to up the excitement stakes, you can choose between what finish you want for the gathered skirt. Pick the regular gathered seam to keep it low key and classic, or the gorgeous exposed frill seam to add that extra wow factor. You can choose to sew the stunning exposed frill seam or the regular gathered seam to the waistline and sleeve flounces, or you could do one of each!

For an in-depth look at our best selling original Indigo smock top and dress sewing pattern, please check out our big Indigo breakdown blog post HERE.

The Indigo UK 16-34 patterns have been designed on our new block. The UK sizes 16-34 Indigo and Indigo Add-on patterns have been drafted with a bit more room in the bust, tummy and bicep areas. The UK 16-34 size range, which has a whole new size chart, goes up to a 152.5cm (60in) bust, 134.5cm (53in) waist and 155cm (61in) hip, with different proportions to get the best fit. 

Want a little more help picking out which size range is best for you? Check out this blog post which guides you through the differences.
You can purchase the UK 16-34 Indigo and Indigo Add-on as a PDF sewing pattern. You can either print it at home on A4 or Letter size paper and stick the sheets together, or send the A0 version to a copy shop or pattern printer to print full scale. Check out this blog post for our recommendations for printers in your area!



In addition to the slim bracelet sleeves or whimsical flounce sleeves from the original pattern, the Indigo add-on pattern offers a short sleeve variation with optional ruffle, making it perfect for warmer weather (and very cute too), and a bang-on-trend elasticated puff sleeve. The add-on pattern also has a gorgeous button back detail and a gathered panel that attaches to the skirt to make it into an on-trend tiered midi dress. Seriously, the midi dress is extra swishy!

For an in-depth look at our popular Indigo add-on sewing pattern, please check out our big Indigo add-on breakdown blog post HERE.

As with the original Indigo pattern, you have the option to stitch either regular gathered seams or exposed frill seams. Mix and match the pattern pieces and seam styles to create a whopping 60 different variations!

The add-on pattern includes instructions on how to make all new variations. You'll need pattern pieces from the original Indigo pattern, plus the original instructions to refer back to for some of the steps.

The Indigo add-on pack is a digital-only pattern. Upon purchase, you'll receive a PDF pattern for immediate download. You can either print it at home on A4 or letter-size paper or send it to the copy shop to print large scale. If you'd like some guidance shopping for fabrics for your Indigo or need some help fitting the bust or sewing gathers (for example), visit our Indigo sewalong page for a roundup of helpful blog posts from Team Buttons to make your sewing go as smoothly as possible. 


Already own the Indigo sewing patterns in the UK 6-24 size range and would like to have it in sizes UK 16-34 too? No problem! If you email hello@tillyandthebuttons.com with your order number, we'll send you the same pattern in the UK 16-34 size band free of charge

If you already own the Indigo Add-on pattern in UK sizes 6-24, you should have already been sent an updated copy of the PDF files to include the NEW puff sleeve pattern piece, and corresponding instructions.

Ready to whip up an Indigo dress or three? We know here's lots of info to take in here, so here's a quick list of links so you can confidently order the version of Indigo you need next (remember to double-check which size band you have selected):

  • Get the original Indigo printed & PDF sewing pattern in sizes UK 6-24 HERE.
  • Get the original Indigo PDF sewing pattern in sizes UK 16-34 HERE.
  • Get the Indigo Add-on (inc. new puff sleeve) PDF sewing pattern in sizes UK 6-24 HERE.
  • Get the Indigo Add-on (inc. new puff sleeve) PDF sewing pattern in sizes UK 16-34 HERE.
  • Buy the Indigo bundle to get everything HERE.

We always love seeing your makes and progress shots so don't forget to tag us on Instagram @TillyButtons using the hashtag #SewingIndigo so we can see your lovely creations.


Model: Bethany Rutter - @bethany_rutter

Photographer: Jane Looker - @janelookerphotography

MUAH: Simone Beyleveld - @thebridalstylists & @simonebey


Bethany wears a size UK 26 at the bust, graded to a size 30 at the hips.

1. Indigo top with flounce sleeves and regular gathers in geometric cotton fabric.

2. Indigo dress with straight sleeves and exposed gathers skirt in sage viscose twill fabric.

3. Indigo add-on dress with puff sleeve and tiered skirt in red & pink cotton seersucker fabric.

4. Indigo add-on dress with short flounce sleeves and button-up back in white floral embroidered cotton fabric.