Don't be discouraged by not being able to try on clothes just use the easy -self measuering instructions- (shown on each product page - example shown below).  Each product has an easy to follow Sizing Charts which allows you to measure your Body Size gives you Product Measurements.  Example Shown Below.  
 

   NOTE: Ladies Fitted & Baby Doll Style Shirts run smaller than the standard shirt charts shown below - please review the Fitted & Baby Doll Size Charts carefully when ordering as they are 1 to 2 sizes smaller than normal.