Sewing tutorial - large format case

I had this idea of a case but in a larger format this time. It can be suitable for various uses such as toiletry & makeup bag, compact changing bag, transporting jewelry or underwear ... Long story short, it's always useful! Here is the tutorial ...

This DIY is more for experienced seamstresses. If you are just starting out, I advise you to start with simpler bags like the clutch bag, the mini toiletry bag or the shoulder bag [Tutorials to follow soon].

Material to make your XL case :

• 80cm of fabric for the exterior 

I chose a popeline of coton from the collection Léa (by myself )

• 80cm fabric for the lining
• 80x50 cm Iron on viseline h640 (to strengthen)
• 15x40cm Iron on Decovil (to stiffen the bottom)
• 1 strap of 1,60m
• 1 zipper of more or less  50/55cm
• 1 piece of elastic of 35cm
• 1 plastic snap button of your choice 
• the pattern to download here

 My finished case measures more or less 35x25cm. 

Step 1 : Cut and reinforce 

Print the pattern and cut out the shapes for your XL case. 

Reinforce all the parts:

• the bottom with the Decovil
• all the other pieces with the H640 except the 2 pieces for the pocket 

Warning: do not use steam. Simply put the hot iron down for a few seconds while moving around the piece. 

Step 2 : the zipper

Step 3 : assemble the central part

Sew the short sides with the bottom then sew the piece with the zipper. You now have the entire central outline of your case.

Step 4 : prepare the pocket

Sew right sides together the 2 exterior pieces of the pocket as shown on the picture below. 

Turn the piece over and thread the piece of elastic using a safety pin. Lock the elastic with a small straight seam on both sides. 

Sew a few millimeters from the edge to close the piece and hold your piece securely on your elastic. This will mark the gathers. 

Step 5 : the straps 

Place the straps according to the picture and then sew around the edge, leaving 3 cm open on the top for ease when you'll use it. 

Step 6 : assemble the exterior of the case

Place the pocket right side up and sew around the edge. Then turn the piece over. 

Place one side right side up on the bottom of the case and sew. 

Repeat the step with the second side and don't forget to open the zipper to be able to return your case.

Place your button in the centre of the pocket. 

Step 7 : the lining

Start by placing the pieces of the lining by the zipper.

Then place the side parts, followed by the bottom.

It is time to sew the side parts as for the exterior part. Remember to leave an 10-12cm opening somewhere to turn the piece over.

Step 8 : finitions

My large format case is ready !

See you soon,

L.