Learn how to turn cheap foam flip-flops into fab boho crochet sandals! Follow the free crochet pattern and make yourself cute new crochet flip flops in just a few minutes. This post contains affiliate links, which helps support Whistle and Ivy at no extra cost to you. 

crochet around foam flip flops into cute crochet flip flops

A few weeks ago I order a few pairs of foam flip-flops from Old Navy. After I designed my It’s Not Knit Tote, I realized the yarn almost exactly matched the aqua-colored flip-flops! So I started thinking of ways to add some crochet flair to these plain flip-flops. The construction of these sandals is quite simple, you just add a small square! But they look SO cute on the feet. I am loving them!

crochet on foam flip flops for cute crochet flip flops sandals

I highly recommend using cotton yarn. It will wash easy and it won’t be a problem if (and when) your crochet flip flops get wet. I experimented with Medium (Red Heart Scrubbie Smoothie and Knit Picks Dishie) and Sport weight yarn (Knit Picks CotLin). Though they all worked well, but I lean towards the medium weight yarn,  It tends to fill in the spaces better without causing your stitches to be “ruffly” on top. This could also be because of the size hook I used, so do your own experimenting to get the right fit. There is no right or wrong way!

crochet on foam flip flops for cute sandals


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Please remember: You are free to use this crochet flip flops upcycle pattern to make and sell, but do not republish or distribute this pattern in any way. DO NOT use my photos in your listings. Please do share my blog links! It’s a quick and FREE way of supporting Whistle and Ivy and more free crochet patterns in the future. 
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What you need: (affiliate links)
– G Hook (or any hook that works best for you)
– Cotton Yarn (experiment with the weight, but I tried both Medium and Sport)
– Cheap Foam Flip-flops
Darning Needle
– Hot Glue

Abbreviations: US Terms

Ch – chain
Sc – single crochet
Dc – Double Crochet
Sl st – Slip Stitch
St – stitch


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Step one:

Start by crocheting around the strap on the flip-flops. It takes a bit of practice to get your stitches looking clean and neat. Don’t give up, just practice a bit more if it doesn’t look the way you would like. It’s definitely a change from regular crochet. When you get to the connecting piece at the front, simply rotate the sandal and continue up the other side. Cut your end.

crochet on flip flops
crochet around foam flip flops

Step Two:

Glue the ends in place at the base of the flip flop straps. Wrap your ends piece and glue it on the underside of strap where it meets the foam. This keeps it from bothering your foot once you are done.

Step Three:

Make the square middle piece: 
Start with your corresponding color (or use same color if you prefer)
Ch 3.
1. Dc 12 in the first ch. Join with sl st. (12 sts)
Switch to main color.
2. Ch 1. Sc in same st. *Sc, ch 2, sc all in next st. Sc in next 2 sts.* work three times. Sc, ch 2, sc all in next st. Sc in last st. Join.
Tie off.

Step Four:

Sew the square in place by laying in flat, lining up the edges with the tops of the stitches on the flip flop strap. Using your darning needle, start on one side and sew down and up the other side, and back again so it’s very secure.
Tie off and weave in your ends.

adding crochet to foam flip flops

Step Five:

Make a chain about 65-80 sts long for the tie. Using your hook, pull it through the top corner of the crochet square. Tie it around your ankle when wearing your crochet flip flops.

crochet on foam flip flops with an ankle tie
crochet on foam flip flops

Yeah, I am probably going to add crochet to all the flip-flops in my closet now.

How about you?

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  1. Smart idea! I’m gonna make some as soon as I buy flip flops. There’s so much that can be done with what you’ve given us. Thanks a lot.

  2. Thank you Beth. I can’t wait to try this…with some help though, as I am not too skilled. I appreciate your patterns and all the hard work you put into them and your tutorials. Awesome!

  3. Why do I have to get all the comments when I only want a printed copy of the instructions? This is a total waste of my copier paper. I love your patterns and your website but not all the comments that I could easily read if I wanted to.

    1. To only print the pattern, you will need to highlight the text, right click and click print. When you simple hit “print” from the top bar, your printer will automatically print everything on the webpage.

    2. You can choose to print only the pages you need. If the pattern is just on the first two pages, for example, choose the page range as either 1, 2 or 1-2. That should solve the problem.

  4. I made 2 pairs so far and ready to make more. Lots of July birthdays so got dresses to match.
    These are awesome!

  5. Just made the crochet flip-flops today. I love them! Thank you so much for this fun pattern!