Fitness Fit Clothing, specifically athletic wear, worn to a gym, fitness center or health club for the purpose of physical activity. Which dress is best for gym & Fitness Fit Outfits for Womens? Women’s Wear a breathable material like cotton or polyester. Also, Women’s Gym & Fitness Outfits that are loose and comfortable. Explore our Women’s Fitness Fit collection online and find the shoes, bras, gym leggings, sweatshirts, hoodies, and other athletic wear.