I bought the mid-size KIrkland V-Necks from Costco but found the cotton to be thick and stiff (and too hot). I was hesitant to buy small ones but was pleasantly surprised. They wash well and fit well. I like them so I ordered a second pack. Costco stopped wearing the V. I like these in the small size. Precisely. I'm 5 feet 6 inches and a half and weigh less than 140 pounds. If you are usually of average height, you can order a small one. Soft cotton and washes well.
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