How to Choose the Right Mid Layer

What is a mid layer?

A mid layer is the insulating layer between your base layer and outer shell. Its main job is to retain warmth while allowing moisture to move away from your body.

When should I wear a mid layer hiking?

Add a mid layer when your base layer isn’t providing enough warmth. This can be during colder conditions, early mornings, rest stops or when activity levels drop.

Can I wear a fleece as my outer layer?

Yes. In dry and relatively mild conditions, a fleece can work well on its own. When wind or rain increases, add a protective outer layer.

How warm should my mid layer be?

Choose the warmth according to the temperature, activity level and conditions. A lightweight fleece may be enough for active hiking, while thicker fleece or insulation is better suited to colder conditions or long periods of inactivity.

Can I wear a mid layer in summer?

Yes. A lightweight fleece can be useful in the mountains, during cool mornings and evenings, or whenever temperatures can change quickly.

Should I wear a mid layer under a waterproof jacket?

Yes. A mid layer and shell work together as part of a layering system. The mid layer provides warmth while the shell protects against wind and rain.

How do I stay warm without overheating while hiking?

Use layers you can easily add or remove. Start slightly cool, use a breathable mid layer while moving, and add insulation when you slow down or stop.