How to layer for outdoor sports

Most outdoor clothing advice comes down to three garments worn together: a base layer, a mid layer and an outer layer. Each does a different job, which is why we score each one on different things. We build scores from manufacturer specifications, independent reviews and owner reviews, and we do not test products in person.

Outside

Three layers worn from the skin outward: the base layer moves sweat away, the mid layer holds in body heat and the outer layer keeps rain outOuter layerMid layerBase layerYour skinKeeps rain outHolds in body heatMoves sweat away

Inside

Worn in this order, from the skin outward.

What each layer does

Base layer

The base layer sits against your skin. Its job is to move sweat away so it can evaporate, so breathability makes up 45% of the score in our base layer rankings. Polyester and merino wool tops both appear in our rankings. Prices run from under $60 in the Smart Buy rankings to over $100 in Top Shelf.

Not sure which fabric to pick? Read merino wool or synthetic.

  • 45% Breathability
  • 25% Comfort and fit
  • 15% Odor control
  • 15% Durability

Mid layer

A mid layer goes over the base layer and holds in body heat. Warmth makes up 45% of the score. Breathability counts 25%, weight and packability counts 15% and durability counts 15%. You put it on when it is cold and take it off when you warm up, which is why weight and packability is one of the scored criteria for this layer.

  • 45% Warmth
  • 25% Breathability
  • 15% Weight and packability
  • 15% Durability

Outer layer

The outer layer keeps rain out, so waterproofing makes up 45% of the score. Breathability still counts 25%, because a shell that keeps rain out but traps sweat leaves you wet from the inside. Fit and mobility and durability count 15% each. Prices run from under $100 in the Smart Buy rankings to over $250 in Top Shelf.

Reading a jacket tag? Read how to choose a rain jacket.

  • 45% Waterproofing
  • 25% Breathability
  • 15% Fit and mobility
  • 15% Durability

Putting them together

1

Base layer first

Wear the base layer first.

2

Add a mid layer

Add a mid layer when it is cold.

3

Add an outer layer

Add an outer layer when it rains.

The same three layers apply to running, hiking, cycling and skiing, and we rank each of them separately for each sport, in three price ranges.

Rankings by layer

To see how we turn evidence into a rating, read how we score. More in all guides.