Easy How to Sew a Wet Bag 30-minute Sewing tutorial

This DIY wet bag is our favorite bag for the beach and my grandson uses it for my great-granddaughter’s cloth diapers.  

Here’s how to sew a wet bag using your sewing machine, some cord, and your favorite water-resistant fabric. 

Learn how to sew a wet bag

You will find step-by-step instructions for creating your wet bag. This is a simple drawstring wet bag tutorial.

We do have an option if you want to take the full class with full-length videos and the ability to ask questions, we have those full classes on Udemy,

This is great for the beginner sewer. We have an abbreviated version in our sewing library you can access for free.  

Supplies for Wet bag

• Scissors or Rotary cutter
• Sewing Machine
• Water-Resistant Fabric (for outer fabric pieces )
• Fabric Cutting Mat
• Thread
• Sewing pins
• Sewing Clips
• Bone folder
• Iron
• Ironing Board
• Magnetic Sewing Pin Holder
• drawstring cord 2 yards for each side of your bag

Assemble your wet bag

Now it’s time to start assembling your wet bag. Great job on learning how to sew a wet bag.

These simple wet bags will become a favorite sewing tutorial quickly.  You may need to change out your needle. I used a Universal needle on this project but depending on the weight of your water-resistant traffic, you may need a denim/canvas needle.

Cut your wet bag fabric

You will need 2 pieces of fabric on the fold that measure 20 x 8″. You also need a rectangle cut which is 6×2″. You will create your loops for the bottom corners to help hold your cording. 

Create the loops

Take your  piece of fabric for your loops and fold in half lengthways. Now you want to iron that piece and open up and fold each half into the middle.

Again iron the folded edges. You will then want to do a straight stitch down the side seam. for added strength, Now take and cut that in half and use your Serger and sew the ends or use a Zig-zag stitch.  

Lastly, attach your loops about 1″ from the bottom of your bag. You will pin them with the loop facing inside. Line your edges up with your straight edge and use straight pins to hold in place after you reinforce your fabric. 

Great job on doing that part of how to sew a wet bag tutorial. Don’t forget to download the PDF tutorial.

Reinforce the fabric

You want to sew around both pieces of your fabric with a zig-zag stitch or Serger.  You will simply sew down your edges. You are not turning any of your fabric down. 

Mark your Casing

The fabric drawstring bags have a 3″ casing at the top to put your cording through.  Put your right sides together and make sure your raw edges line up. Measure 3″ from the top and mark with your fabric marker or with sewing pins. 

Sew your wet bag sides and bottom

Next, you want to sew a 1/2″ seam allowance down each long edge and then the bottom. Don’t forget to back stitch when you start and finish. 

Additionally, make sure you caught your loops well, so they never come apart. I turned my bag inside out to make sure before I created my casing piece.

Create your Casing

You need to create a drawstring channel to pull the ends of your drawstring cording through.

In order to create your casing, you have to first iron all your side seams with your iron. Don’t forget to also do the opposite side of the bag so that all your seams are open. 

Next, you want to sew down the side of one opening, across the bottom and then up the other side. This will help reinforce your casing of your wet bag.

Third, you need to turn the top edge of your bag to the seam and iron. You then want to turn under the bottom edge about a 1/4 inch.

You will want to sew the top edge of your casing and sew a second seam at the bottom of the casing to keep your drawstring chord in the middle of your bag.  

The cord tends to want to go to the top of your bag without doing this. 

After sewing, turn your bag so that the wrong sides are facing each other and you see the bag as it will look when finished.

Add your drawstrings

You are nearly finished. Just a few more steps and then you can say you learned how to sew a wet bag. Take 1 of your drawstrings.

You will want to put masking tape or use wax from a candle and put that on the end of the drawstring. 

Next, you want to add a large safety pin on the ends of the drawstring and start to push it though the drawstring casing at the top edge of the bag. You will tie a double knot in your cord at the bottom of the bag.  Do this on both sides. You now have a finished bag

This is the perfect project if you are teaching kids to sew or looking for easy sewing projects to do in a  1/2 day.

Congrats, you have learned how to sew a wet bag. These can be made in a variety of sizes and make great homemade gift bags and are a great way to carry things while at the Farmer’s market or at the beach.  Get the free sewing pattern in our Sewing Class Library.