230 to 240 stitches. When knitting wool vests for the elderly, many factors need to be considered to determine the number of stitches, including the body shape of the elderly, the degree of obesity, the thickness of the selected wool material and the specific requirements of vest design. Normal-sized elderly men, the standard size of 60 years old can be based on 230 ~ 240 stitches. To consider more detailed customization needs, it is necessary to measure the chest circumference of the elderly and calculate the number of stitches according to the chest circumference size and expected tightness. According to the thickness of wool, the number of stitches should be adjusted accordingly.