The Best Gym Apparel for Men: A Guide Choosing the right gym apparel is key to staying comfortable and performing well in the gym. Here’s a breakdown of what to look for in gym wear. 1. Breathable Tops Breathable, moisture-wicking tops prevent overheating and help keep you cool. Look for tops designed specifically for high-intensity workouts. 2. Flexible Bottoms for Full Mobility Bottoms with four-way stretch allow unrestricted movement, making them ideal for exercises like squats and lunges.