It is not just a fad; compression has clearly proven physiological benefits. It tightly hugs the muscles, improving blood flow, keeping them warm, and rapidly reducing the risk of strains or injuries. Moreover, long compression leggings do an absolutely perfect job of protecting your shins from bleeding and scraping during heavy deadlifts.
Odor trapped in synthetic fabrics is almost always caused by one fatal mistake. The absolute killer of functional clothing is fabric softener! Fabric softener coats the synthetic fibers, clogs their pores, ruins their breathability, and literally locks the odor-causing bacteria inside. Wash your gear at 30 to 40 °C, use specialized sports detergents, and never leave your sweaty clothes sitting in a gym bag for long.
You can avoid this problem by paying close attention to the material composition. Look for pants that contain at least 5 to 10% elastane (spandex) and have a flexible (often gusseted) seam in the crotch. This type of clothing stretches in all four directions (4-way stretch) and will easily handle even the deepest squat or lunge without any embarrassing accidents.
While cotton is incredibly comfortable for everyday wear (athleisure), wearing it for a hard workout is a massive mistake. Cotton absorbs sweat, becomes heavy, gets cold, and takes hours to dry. For a brutal leg day or intense cardio, always reach for high-quality synthetics (polyester + elastane). It wicks moisture perfectly away from your body, dries incredibly fast, and keeps you warm and dry.
Most fitness brands design specifically for this athletic "V" shape. Look for clothing labeled "Muscle Fit" or "Tapered". These cuts are roomier across the chest and shoulders but taper down at the waist, so they won't hang on you like a sack. Usually, your regular size will fit perfectly, but always check the specific manufacturer's sizing chart just to be safe.