I'm a 31 waist and normally wear medium underwear. I purchased these in medium and they are perfect. Great colors, soft, breathable mesh fabric, snug but comfortably so and I was looking for a tighter fit. I'm purchasing more now. Great packaging too.
Stylish And Comfortable: Goodthreads Men'S Slim-Fit Chino Shorts With Comfort Stretch Technology
49 Review
Stay Cozy with DAVID ARCHY Turtleneck Nightwear for a Comfortable Sleep
53 Review
Compression Tank Top For Men: Slimming Body Shaper With Tummy Control And Moobs Binder Underwear
48 Review
Men'S Slim Fit 1/4 Zip Pullover Sweater - Durable Wash Friendly Soft Fitted
51 Review
Men'S Regular Fit Short-Sleeve Dress Shirts By Allsense - Look Stylish And Professional!
41 Review
INFLATION Bamboo Shirts Sleeve Elastic Men's Clothing in Shirts
45 Review
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
46 Review