Sewing V-neck with lace is relatively simple, because both sides of lace are unilateral, so it is simple and easy to operate. Measure the circumference of V-neck with a soft ruler, and cut lace according to the comparison. Without a soft ruler, you can also directly measure the circumference of the collar with lace, then connect the two ends of the lace together and sew the lace along the front of the collar. Need to be reminded that the lace seam must be placed in the center of the back.