The Key Differences Between Indoor and Outdoor Swimming

Whether it is the quiet morning air of a backyard pool or the shared energy of the local YMCA, swimming is where we go to feel free.

Outdoor Swimming: Offers a connection to nature. The sunlight provides a Vitamin D boost and the fresh air can be invigorating for the soul. It is a more social, relaxed environment.

Indoor Swimming: Provides a controlled, year-round sanctuary. You don’t have to worry about the wind, the cold, or the changing tides. It’s stable, predictable, and focused.

The Nammu Perspective

We believe the water should be a place of healing, not stress. We designed our hats to bridge the gap between these two worlds—giving you the protection you need for the wild outdoors and the style you want for the indoor lanes

Outdoors, the sun is a beautiful companion, but it can be a source of anxiety for an exposed scalp. Sunscreen in the water is hard to manage and often washes away. Indoors, while you are safe from UV rays, the harsh lighting and chlorine can still be tough on sensitive skin.

This is why Nammu exists. It’s your permanent shield. Whether it’s blocking 98% of UV rays outside or protecting your scalp from chlorine and “exposed” feelings inside, we’ve got you covered.

One of the main differences in outdoor swimming is UV exposure. While sun exposure is beneficial, it poses a risk of skin damage if proper protection is not used. Indoor swimmers are protected from UV rays, but the social dynamic is different. Indoor pools are often more focused on fitness and training.

Indoor pools can sometimes feel “exposed” under the bright lights and lane markers. We believe you should feel confident in any lane. A Nammu hat does not look like medical gear; it looks like a style choice. It is about belonging in the water exactly as you are.

Ready to dive in?

Don’t let the environment dictate your joy. Wear something that makes you feel like yourself.