Amazon EssentialsWomen's Short-Sleeve Polo Shirt (Available in Plus Size)

Do these run small or bigger? or are they true to size? if i usually wear a medium is that the size i should go for? i'm a size 30 or 10 in pants as w

I have tried and know my size and want to order 6 of them but I don't see button "Add to cart". It only let me check out one to try on?

Why don't you have a size chart to compare?

Do thewe polo shirts have a slit at the sides?