How to Wash Gym Clothes the Eco-Friendly Way  

To wash gym clothes properly, air them after exercise, follow the care label, turn them inside out and use the coolest suitable cycle. Make sure to use the correct amount of detergent and air-dry them where possible too.

Your gym clothes need slightly different care from your everyday wardrobe. Synthetic, moisture-wicking fabrics can hold onto sweat and deodorant residue. This is especially true when damp kit stays in a gym bag. A hotter wash, extra detergent or added fragrance won’t always solve the problem.

This guide explains how to wash gym clothes without damaging them, remove lingering smells and reduce energy and product use. Using pre-measured laundry sheets are an easy option for hot, cold and quick washes.

Why Do Gym Clothes Hold Onto Sweat Smells?  

Gym clothes can still smell after washing. This is because synthetic, moisture-wicking fabrics may hold onto body oils and deodorant residue. These materials move moisture away from your skin during exercise, but they can also retain odours more easily than some natural fibres.

The smell often becomes more noticeable around areas that sit close to your skin, including:

• Underarms

• Waistbands

• Sports-bra bands

• Between the legs

Damp clothing can also become harder to freshen if it stays scrunched inside a gym bag. The enclosed space gives it no chance to dry before the next wash, so smells may linger in the fabric.

Make sure to take your damp kit out of your bag as soon as you can and hang it somewhere with good airflow. This doesn’t replace washing, but it stops the clothing remaining damp while you wait for a suitable load.

How to Wash Gym Clothes in 7 Steps  

The best way to wash gym clothes is to prepare them properly before they go into the machine. Begin by airing damp kit and checking the care label. Use this to choose a suitable laundry detergent to help remove sweat smells while protecting the fabric.

1. Air damp clothes after your workout  

Take damp gym clothes out of your bag as soon as possible after exercising. Hang them somewhere with good ventilation if you can’t wash them straight away.

Avoid leaving wet kit bundled inside a sealed gym bag or laundry basket. This keeps the fabric damp for longer and can make lingering smells harder to remove.

Airing your clothes doesn’t replace washing. It simply stops them sitting damp while you wait until there’s a suitable load ready.

2. Check the care labels  

Check each garment’s care label before washing. It's important to look for the maximum temperature, recommended cycle and drying instructions.

Different items may have different requirements. Items such as leggings, performance tops, sports bras and waterproof clothing shouldn’t automatically be treated in the same way.

The care label takes priority over general advice. This is especially important for garments with coated fabrics, specialist finishes or structured support.

3. Turn gym clothes inside out  

Turn leggings, shorts and tops inside out before placing them in the washing machine. This exposes the areas that have been closest to your skin, where sweat and deodorant residue may collect.

Fasten zips and hook and eye closures where appropriate. Check pockets and remove anything that could damage the clothing or washing machine.

You can also place delicate items in a reusable mesh laundry bag, as long as the care instructions allow it. This can help protect them during the wash.

4. Sort the load carefully  

Wash compatible gym clothes together where possible, but keep them away from rough or heavy items that could cause friction.

Avoid washing technical activewear with:

• Towels

• Jeans

• Exposed Velcro

Towels can be particularly rough on stretchy fabrics, while Velcro can catch on delicate materials. Sorting your laundry carefully can help protect the shape and finish of your workout clothes.

Don’t overfill the drum. Your clothes need room to move freely and rinse properly. At the same time, don’t leave damp sportswear sitting for several days just to create a full load. Wash it when needed, or air it properly while you wait.

5. Choose the right detergent and dose  

Use the correct amount of detergent for the size of the load, how dirty the clothes are and the hardness of your water.

Adding extra detergent won’t necessarily remove lingering smells. It can leave residue on the fabric, which may make clothes feel coated and affect how fresh they seem after washing.

Laundry Detergent GreenSheets™ offer a pre-measured option. They can be used in hot, cold and quick washes, making it easier to avoid using more detergent than you need. Use one sheet for a standard wash, or two for heavily soiled laundry or hard-water areas.

You can learn more about the benefits of laundry detergent sheets before deciding whether they suit your routine. Always follow the current product directions.

6. Select the temperature and cycle  

Choose the lowest temperature suitable for the garment and the level of soiling. Many activewear items can be washed on a cool or gentle cycle, but the care label should always guide your choice.

Cooler washing can help reduce energy use. It may also help protect the elasticity and technical finishes in some garments by limiting exposure to heat.

Use a sportswear cycle if your washing machine has one and the care label permits it. A quick wash can work for lightly worn items, but it may not be enough for heavily soiled or strongly smelling kit.

The right cycle depends on the clothing and the condition of the load. Don’t assume one temperature or programme suits every type of gym wear.

7. Air-dry where possible  

Check the drying instructions before removing your gym clothes from the machine. Air-dry them on a washing line or drying rack where practical.

Some items may need to be laid flat to help them keep their shape. Avoid hanging a wet sports bra by its straps, as the weight of the water could stretch them.

Only put activewear in the tumble dryer if the care label says it’s suitable. Reducing tumble-dryer use can save energy and limit unnecessary heat exposure, which may affect some technical fabrics over time.

Make sure your gym clothes are completely dry before putting them away or returning them to your gym bag. Storing damp clothing can cause smells to linger and make the next wash more difficult.