Step 1, find an old T-shirt (long and short-sleeved can be, fabric of your choice);
Step 2, cut off the 2 sleeves, and then along the armpits of the clothes will be 2 sides of the knots and seams completely cut open;
Step 3, before the activity of the tank tops close to the wear;
Step 4, the tank tops are soaked in sweat, you can grab the neckline upwards and tug it straight out, saving you the trouble of undressing.