Clima-Wool Base Layers

We know a bit about base layers and wool. In 1985 Hot Chillys manufactured our first wool blend base layer and revolutionized the 80's under-ski-wear market.

Clima-Wool features a blend of mulesing-free merino wool to keep you warm, moisture transfer fibers to move moisture, and nylon to make sure you stay dry. It’s comfortable enough to live in and works hard for you when you need it.

Clima-Wool keeps you warm and comfortable during all of your outdoor activities. It’s the ultimate comfort experience, and it’s unique to Hot Chillys.

We've reinvented our Merino Wool/MTF Nylon blend in a comfortable, relaxed fit that's perfect for the hiking trail or the campfire.

Technical Features

Four-way Stretch

Hugs your body and moves with you—no extra bulk, improved performance

Moisture Transfer Fibers

Keeps you dry, warm and comfortable with our exclusive MTF technology enabled by hydrophobic yarns that move moisture away from your body

UPF 30

A UPF 30 rating is designed to block approximately 97% of UVB rays

Odor Blocking

Enhanced odor control properties inhibit growth of odor-causing bacteria —guaranteed for 20-30 washes