Lululemon AIM/Always in Motion 5” boxer briefs 3 pack new never worn. Size: Men’s medium Fit: My take is these are a slim medium. I’m a 33” waist and weight 183 and wear size large in this line. Medium would suit a 29-31”W, 165-175 lbs. (IMHO) See brands website for more details. Color: Black, Green and True Navy Features: 91% Modal , 9% Elastane. Lightweight, moisture wicking and comfortable athletic feel. Check out my other always quality outdoor and athletic apparel for sale. I strive for detailed and transparent listings. Avoid disappointment and buy with confidence.