Sweater weather is better weather!!! I am so excited about the crisp air and all the sweater possibilities out there! This mock neck sweater has an open knit design. When it comes to the sizing it is a ONE SIZE FITS MOST, I'd say they fit beautifully up to size 16/18. Please be advised that this item will fit differently across body sizes. On smaller figures you can expect this to fit very loose and possibly best described as a sweater dress.