I followed the directions for my waist size, ordering a L, and the JINSHI performance underwear fit as expected. They are comfortable and provide gentle support, that less than medium compression shorts. I believe there is enough support for weight training. Runners may want more support, depending on your level of comfort.As noted by other consumers these underwear are very soft and stretch as appropriate, while maintaining their shape. Because of this, I surmise there is ample crotch room in the pouch for 98% of men. I will purchase additional pairs.
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