If your gym or running clothes are still odorous after a regular wash, you may need a special detergent. Look for products specifically designed for athletic fabrics and tackling tough sweat and dirt stains. Also, soaking or pre-washing the item in cold water with a few drops of vinegar before laundry day can help lift any stubborn smells from the fabric. Finally, if all else fails, consider hanging the garment outside to air dry and give it some extra freshness!