1, prepare wool and wool needles, and start 40 stitches.

2. It is distributed on 3 pieces, with one upper needle and one lower needle. Weave to the required length.

3, and then start knitting needles, knitting to the armpit. Change the needle, knit another needle, upper needle, lower needle.

4. Weave to the required length and close the needle.

5. Then choose 4 stitches from the front, one stitch up and one stitch down. Knitted shoulder strap. After weaving to the required length, sew on the reverse side.

6. The other one has the same weave. So the vest is knitted.

The process of knitting yarns of various raw materials and varieties into loops with knitting needles and then connecting them into knitted fabrics through a series of sleeves. Knitted fabric has soft texture, good wrinkle resistance and air permeability, high extensibility and elasticity, and is comfortable to wear. Knitted products can be used not only for clothing and decoration, but also for industry and agriculture, medical care and national defense. Knitting is divided into hand knitting and machine knitting. Handmade knitting needles have a long history, exquisite skills and flexible patterns, which have been widely spread and developed among the people.