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The Clamshell Sling Bag & Waist Pack PDF Sewing Pattern & Video Tutorial

(3 customer reviews)




Watch the video introduction HERE


A softly shaped unisex sling bag, waist pack, or crossbody, with a large zip main compartment, inside pocket and an optional front zip overlay pocket. With a choice of detachable or fixed straps. Includes a bonus mini strap-pouch.


Approximate finished dimensions: 24 x 15 x 6 cm (9 ½” x 6” x 2 ¼”)

Skill level: Moderate


Use it for days out, travel, outdoor pursuits, dog walking or bling it up for a classy shopping weekend or a night out.



  • Suitable for domestic machines
  • Sleek curved profile achieved with cleverly engineered pattern pieces
  • A flat back to sit comfortable against the body
  • Front zip overlay pocket for small items such as ID cards and earbuds
  • Generous, fully lined main compartment for phone, glasses, keys and wallet.
  • Inside credit card pocket to hold numerous cards
  • Accessible large slip pocket to the back
  • Fixed and removable strap options
  • Bonus pattern included for raw edge strap-pouch
  • Various Adjustable strap options to use as sling bag, waist pack, or crossbody


Delivered by instant download and includes full-size computer-generated pattern pieces, pages of full colour tutorial style instructions with detailed photos, along with a video tutorial to walk you through making this gorgeous bag

  • Instant Download
  • Video Tutorial included
  • Full sized computer drafted PDF pattern pieces included
  • All measurements given in inches and cm
  • Complete, easy to follow instructions with full colour photos for every step
  • Relevant sewing tips
  • A list of material requirements and suggestions
  • Printer friendly. Prints on US letter size or A4 paper
  • Size check feature to verify your printer settings


Pattern support – I have a bag making Facebook board for help and support with my patterns and just general bag making chat. You are welcome to join here:


For lots of additional help and tips on bag making visit my YouTube Channel:



Within a few minutes of payment, you will be able to download this PDF pattern. You will be able to print out the pattern from your own computer.
YOU WILL NEED ADOBE ACROBAT TO OPEN THE FILE. You probably already have it, but if not, you can download for free at

You will need for main bag:

Outer Fabric: 0.25m (1/4yd) Firm fabrics including – Cork, vinyl, waterproof canvas, oilskin, waxed canvas, and Cordura. Quilt cottons may be used with a layer of extra firm interfacing.

Interfacing for Outer: 0.25m (1/4yd). Not required unless using light weight fabrics such as quilt cotton. Use a layer of extra firm interfacing such as Decovil Light.

Lining Fabric: 0.3m (1/3yd). Any lightweight fabric such as lightweight waterproof canvas, nylon lining fabrics and quilt weight cottons.

Interfacing for Lining: 0.3m (1/3yd). For quilt cottons use Medium Weight Fusible Interfacing (MWFI) such as Vilene F220, G700, Pellon SF101. Not required if using nylon or waterproof lining fabrics.

Zips: 1 x 40cm (16”) and 1 x 20cm (8”) Nylon Coil Zip – to match outer. Not suitable for metal zips.

Front Pocket Overlay: This pocket is optional. Strip of non-fraying fabric such as leather, cork or vinyl.

Webbing Strap: 137cm (54”) 1 ¼” or  1 ½” wide webbing.

Strap Closure: 1 each 1 ¼” or  1 ½” side release buckle and triglide to match your chosen width of webbing.

Bias Binding:  58cm (23”) of ¾” wide pre-made bias binding.

(see pattern for optional extras)

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Sew It & Sell It
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Items made using this pattern can be sold in small scale in your own online store, local boutiques, craft fairs, etc. Start your own sewing business today! Please offer Spencer Ogg credit in written descriptions. Please do not share this pattern with anyone, instead direct them to my shop for their own copy! Thank You!
**Because this is an electronic file, there are no refunds once the pattern has been emailed.**

3 reviews for The Clamshell Sling Bag & Waist Pack PDF Sewing Pattern & Video Tutorial

  1. Sheryl Corgan

    The clamshell sounds like it would be small, but this sling bag holds so much. I love the design, love the pattern and video too, you make all your patterns so easy to follow. Fabulous pattern, thank you, Diane.!

  2. JT

    Love this pattern. Easy to follow and an amazing finished product. Very roomy bag too.

  3. Candy Foss

    I love this pattern, I’ve made 4 or 5. I have rambunctious grandkids apparently. and the strap was separating from the bag. My solution is to add 4 rivets to the back near the strap on the pocket. I have a picture if you would like one.

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