The provided context unfortunately doesn't contain specific instructions on removing sweat smells, so here is some general expert advice on how to tackle that tricky issue.
Dealing with a sweat smell on leather can be frustrating, but it's definitely a solvable problem! The key is to clean the leather gently to remove the bacteria causing the odor and then follow up with some deodorizing and conditioning.
First, you'll want to give the leather a good cleaning. A simple and effective solution is to mix equal parts of distilled water and white vinegar. Lightly dampen a soft, clean cloth with the mixture—be sure not to soak it—and wipe down the entire surface of the leather item. The vinegar is great because it helps to kill the odor-causing bacteria. Always test any cleaning solution on a small, inconspicuous spot first to make sure it doesn't affect the color or finish.
After wiping it down, let the leather air dry completely in a well-ventilated area, but keep it away from direct sunlight or heat, which can cause it to crack. Once it's dry, you can move on to deodorizing. A great natural deodorizer is baking soda. You can sprinkle a light layer of it over the leather or, for items like a jacket or bag, place the item in a large bag or box with an open container of baking soda and seal it for 24 hours. The baking soda will absorb any lingering odors. Afterward, you can simply brush or vacuum the baking soda off using a soft brush attachment.
Finally, and this is a crucial step, you need to condition the leather. Cleaning, especially with a vinegar solution, can strip some of the natural oils from the material. Applying a good quality leather conditioner will restore moisture, keep the leather soft and supple, and help protect it from future stains and odors.
