Understanding how baselayers work

Jun 03, 2021

There’s no such thing as bad weather if you’re wearing the right gear, so making the right choice will guarantee you’ll love your Life’s An Adventure pack-free guided walk.

The generally accepted way of dressing for the elements is a layering system that lets you control your body’s microclimate through selecting a range of garments that work individually or in combination.

You’re Life’s An Adventure guide will give you more info on this but here’s a rule of thumb.

There are three distinct layers out there, two of which can be removed or added as you need them.

Hiking with a breathable Merino t-shirt.


Base layer As the first line of moisture management, the base layer sits closest to your skin and will collect the most sweat throughout your walk, so it needs to wick moisture away while providing you with some insulation.

Don’t make the mistake of wearing your favourite cotton t-shirt on a walk – cotton tends to retain moisture, quickly turning into a cold, clammy layer next to your skin and forcing your body to increase its heat production to counter this.

Most walkers prefer to wear wool or synthetic materials as base layers instead, as they remove sweat and allow it to evaporate across a larger area, keeping you dry and preventing that after-exercise chill.

This is the one layer that you’ll definitely be wearing the whole day, so make sure it’s comfortable, sits snugly against your skin so it can do its job and doesn’t retain any odours.

Inner layer of insulation.


Insulation While getting rid of excess heat is important, you don’t want to lose too much as this makes it harder to maintain your core temperature.

This is when you’ll need to put on the insulating layer, which should trap some of the warmth you’re radiating without making you feel as though you’re being suffocated by your own body heat.

The beauty of this layer is that it can be removed as the day gets warmer or added when you stop for a rest break and begin to cool down.

Hiker wearing an outer shell jacket.


Outer shell If it’s cold and wet you can still get out there and walk, but you’ll need to prevent the loss of valuable body heat and a way to stop the elements from getting in.

This is where the outer shell comes in – these are rain jackets on steroids, combining wind and water resistance with breathability, so you don’t end up soaked from the inside and outside. Ideally they should also protect you from scrapes, cuts and any other external damage.

There are two options available and you’ll need to think carefully before you decide what to wear – soft shell jackets are more flexible and usually water-resistant (but not necessarily waterproof), while hard shells are waterproof, windproof and less breathable.

Some of these may include extra insulation, but there’s still the warm-up factor to consider – if the weather is fine, you may end up shedding it to reduce sweating.

But make sure it’s always in your day pack even if the weather looks good, because if a sudden change comes through and the rain kicks off you’ll be glad to have a jacket with you.

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