So, I follow size charts for underwear religiously. When ordering a new brand or style, I always make sure to consult the chart. Sometimes they’re a bit misleading though as you can fit in two different sizes, and then what decision do you make. Other times, they are right when it comes to sizing, but the cut of a particular brief or the fabric it is made of have a great impact on how it fits. When Andrew Christian started playing with mesh briefs, I was like yay! I am a medium in AC underwear, but found that fit to be too snug in the mesh briefs. There was no give to the material, no stretch. So even though the waistband fit, nothing else really gave or moved with me and that felt constricting. It went against the size chart, but by going up to a Large, there’s a bit more give and room, and even with a bit of shrinkage in the wash, they still fit great! 
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