Bag:

Work 23 ch. Work in round to form the base of the bag.

R1) 22 sc, 3 sc in the 23° ch, and continue with 1 sc in each of the next 22 ch on the other side of ch-row, 3 sc in the last ch.

R2) work like R1, and in the 3 sc at the corners work 6 sc [2 sc in each sc]

R3) work likeR2. but make 1 inc on the 6 sc st the corner, do the same on the other side. (12 sc). Close the row with 1 sl st

To raise the bag work all around the base of the sc pointing the hook in the outer loop, close the round with 1 sl st, continue all the rounds working the sc normally. (20 rounds ).

Tab for front closure:

On half of the bag, work 15 rows in fantasy st; close and cut the yarn

SHOULDER STRAP:

Make a chain of the desired length work all around in sc.

BUTTON:

R1) magic loop with 9 sc inside, tighten the thread slowly; work again 12 sc inside the magic loop, close with 1 sl st.
Leave the thread a little long, with the tapestry needle, make 1 stitch for each ch. Pull the thread and close. Sew the button to the middle of the bag. Point the crochet hook at the middle of the closure tab of the bag and make 6 ch. which will serve as a buttonhole to close the bag