Cotton and cotton rich yarns work best, they make bags more rigid, are hard wearing, but still soft. Use a wool based yarn and your bag is more likely to stretch. My favourites is Sugar n Cream an Aran weight yarn, but I also love Drops cotton yarns and Scheepjes soft fun is an excellent yarn for bags. cotton linen blends. Cotton made bags are usually washable, ideal for the beach and summer picnics.
What stitch to use for your bag?
Double crochet (single crochets) stitches work well, as do half trebles (half double crochets). You can also use a looser stitch or open work style crochet when the lining will show through and this can look very effective. Front and back row post stitches also look good, create pretty ridges and are useful for defining changes in rows.
Options for the construction of your bag
I like to make my rectangular crochet bags in 4 or 5 pieces. That is a front, back, 2 side gussets and a bottom piece, plus handles. Making your crochet bag in this way will make your bag more roomy. However you can make a bag with just a front, back and bottom piece. If you prefer a simpler style and one that is easier to make and easier to construct, just make a front and back and join together on three sides. With this option line it in the same way as a 5 piece bag, that is line your pieces separately, then join together using a back stitch.
Lining
If you can, line your bag with a cotton or cotton rich fabric to protect it and reduce the chances of stretch. This really does make bags look better and more professional, see my orange/pink bag above. Make lining pieces for the front and the back. Turn in half an inch (1.27cm’s) leaving a gap of one row of crochet. This will make it easier when you join your crochet pieces together and will create a neater finish.
Putting it all together after you have added the lining
Attach the side pieces to the front or back of your bag using matching yarn and a backstitch. Join this to the base of your bag. Finally attach the front to the sides and bottom. A ttach handles to your bag.
Handles and straps.
I like strong carrying handles and there are different ways to achieve this. You can make a strip of crochet using dc’s (sc’s) for your handle and double it over when finished by stitching the sides together. Alternatively use your yarn double and doing this creates a lovely strong effect. You can also buy leather and wooden handles in craft stores and these work well. Another alternative is to make thinner handles by making a length of crochet and stitching around strong plastic tubing which you can buy from craft stores. I make shoulder straps in the same way as handles for some of my bags, see my patchwork over shoulder beach bag.
Fastenings
I like to vary these. Sometimes I make a drawstring top to my bags by making 2 chain holes in rows of crochet. This I do by crocheting in dc’s (sc’s) or half trebles (half dc’s) with one row of holes between to make a professional looking top to your bag and to make it stronger. If you do this make sure you make at least four rows on top of your holes. Crochet a drawstring using chains or dc’s (sc’s) on chains and thread through. You can also add tassels, small strips of crochet stitched to your bag for clipping on keys. Sometimes I use a button fastening (you can find how to crochet a button in tutorials on my web site) and loop fastening or a zip. Zips make your bag more secure but require more dressmaking skills!