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Mosu Bag · Free Japanese Knot Bag Crochet Pattern

I've been wanting to sew a Japanese Knot Bag for myself for quite some time now because the design is so handy, practical, and would look great year-round.  I finally decided to go for it -- except with yarn!  


The name of this bag, Mosu, is inspired by the moss stitch used in this design, as it is the Japanese word for "moss".  The moss stitch, also known as the linen stitch, is very easy to crochet.  It produces a beautiful texture as the final result while maintaining a minimal look (perfect for that minimalist aesthetic)!

I was waiting for the perfect yarn to come along to make this bag, and finally found it with the beautiful Twister Summer yarn from Hobbii.  I created this bag as part of their #HobbiicationJunior challenge, which is to create something fun, practical, and handy to use when traveling with little ones this summer! 

Anyhow, you'll be happy to know that this bag is made completely in one piece to minimize sewing.  It's easy and therapeutic to work on because the pattern itself is quite repetitive and simple.  It also comes with a full video tutorial for those who would like to crochet along with me!  

There's a lot of customization that can take place, too.  The size can be easily adjusted and customized by adding (or decreasing) rounds/rows, and you can experiment with different yarn weights, hook sizes, and even yarn color combinations (maybe even put some cool stripes or color blocking in there)! 

Speaking of yarn colors, this bag works up beautifully with solid colors, variegated yarn, or self-striping yarn.  It is recommended to use a yarn that does not stretch, such as 100% cotton yarn.  If desired, you may add a cloth lining in the bag or to the underside of the straps to add durability. 

The Mosu Bag is perfect for kids, adults, teachers, friends, parents, and more!  This handy fashion accessory can be a tote bag, a handbag, a purse, clutch, wristlet...you name it.  Sell them at craft fairs or make them as gifts for birthdays or holidays. 

PDF pattern available!

The PDF pattern is printable, ad-free, easy to read, includes photo references, and helps support Sweet Softies! (If you enjoy my free patterns, you can consider it as a donation to me when you buy one of my pattern PDFs! It allows me to maintain my blog and continue sharing more free patterns.)

You can get the PDF pattern from my store, Ravelry, or Etsy.


Free Crochet Pattern

Terms of Use & Copyright Notice © 2022 Sweet Softies (www.sweetsofties.com). You have permission to sell finished products made from this pattern, but you must credit Sweet Softies as the owner/creator of this pattern by linking to my website (www.sweetsofties.com). No wholesale. You may not translate, copy, alter, or sell my patterns in part or in whole in any way. My patterns may not be used in video tutorials or teaching online classes. My patterns may be used in teaching in-person classes ONLY with written consent from me. You may link to this pattern but you may not copy any part of the pattern instructions on other websites.


Length (not including handles): 7.75” (20 cm) 
Width: 8.75” (22 cm)

Level of Difficulty:

★★☆☆☆ Beginner/Easy. Requires familiarity with stitches used (below) and attaching yarn.

Stitches/Terms Used:

  • FO = fasten off 
  • ch = chain 
  • sp = space 
  • sl st = slip stitch 
  • sc = single crochet 
  • inc = increase


  • Non-stretchy (e.g., 100% cotton) medium weight yarn or fine yarn held doubled
    Yarn I used: fine #2 Hobbii Twister Summer held doubled
    Other recommended yarns24/7 Cotton
  • 5mm crochet hook
  • Yarn needle
  • Scissors 


  • The bag is worked from bottom-up.
  • A full, step-by-step video tutorial is available for this project. 
  • The printable and ad-free pattern instructions can be downloaded from my storeRavelry, or Etsy.


Ch 31. (Note: If you want your bag longer or shorter, just make sure you crochet an odd # of chains.)

R1: Insert 2 sc in the 2nd ch from the hook. Sc 28. Insert 3 sc in next st, bringing you to the other side of the chain. Sc 29.

Tip: place a stitch marker at the start of each round to keep track of your rounds.

R2: Inc 2, sc 28, inc 3, sc 28. In the last st: inc.

R3: (Sc, inc) x 2, sc 28, (sc, inc) x 3, sc 28. In the last 2 sts: sc, inc.

R4: (Sc 2, inc) x 2, sc 28, (sc 2, inc) x 3, sc 28. In the last 3 sts: sc 2, inc.

R5: (Sc 3, inc) x 2, sc 28, (sc 3, inc) x 3, sc 28. In the last 4 sts: sc 3, inc.

Without FO, continue with the height of the bag.


Note: We’ll work the moss stitch in seamless rounds.

R6: Sc around.

R7: (Sc, ch, sk a st) around.

: Sc on the first sc of the previous round. Ch. (Insert a sc in ch-1 gap, ch) around.

R9: Keep continuing the moss stitch with: (ch, insert a sc in ch-1 gap) around.

R10: Repeat R9 until your bag reaches 20 cm in height when laid flat, measuring from R1. You will want to finish this part with your last st as a sc on one side of the bag.

Without FO, continue with the strap instructions below.


Note: The straps will be worked in turned rows, not in continuous rounds.

Strap #1 (shorter):

R1: Ch 2, turn. (Sc in ch-1 gap, ch) x 7. Sc in ch-1 gap. (8 sc total in this round)

R2: Ch 2, turn. (Sc in ch-1 gap, ch) x 7. Insert your final sc in-between the starting ch-2 and first sc of the previous round. (8 sc total)

R3: Repeat R2 until your strap reaches about 12 cm.

FO with a long tail for sewing.

Strap #2 (longer):

First, have the bag set flattened against a flat surface. With Strap#1 on the left side, you’ll want to attach yarn to the very right side of the bag to begin Strap#2. Attach yarn to a sc on the very right edge.

R1: Ch 2, (sc in ch-1 gap, ch) x 7. Sc in ch-1 gap. (8 sc total in this round)

R2: Ch 2, turn. (Sc in ch-1 gap, ch) x 7. Insert your final sc in-between the starting ch-2 and first sc of the previous round. (8 sc total)

R3: Repeat R2 until your strap measures 30 cm.

FO with a long tail for sewing.

Sew the ends of the two straps to the other side of the bag. Weave in all ends. If desired, you may add a cloth lining inside the bag to provide more support and durability.

Congratulations on finishing your Mosu Bag!

Thank you for reading, and hope you have a fun time crocheting this project!  If you'd like to help out my blog, feel free to check out my post, "5 Ways to Support my Blog!"

You might like my other bag designs if you enjoyed this one!  Simply click on the image below for the pattern, or check out all my free patterns here.


I'd love to see your finished work from my designs!  Here are links for sharing photos of your creations: 

As always, you are more than welcome to SHARE this post with any fellow crocheters who'd like to try this pattern!  Thank you for reading, and I wish you all a wonderful day!

Best wishes,