14 min read
Men's Base Layers: How to Choose Weight, Warmth, and Fit

Warmth Factor, GSM, fit, and sizing explained for men, plus what to actually wear underneath. A practical guide to choosing a Hot Chillys base layer.

11 min read
Merino Wool vs. Synthetic Base Layers: An Honest Comparison

Merino absorbs moisture, synthetic repels it. That single difference decides drying speed, odor, durability and cost. Here is the honest comparison, and why Hot Chillys builds synthetic base layers by design.

11 min read
Women's Base Layers: How to Choose Warmth, Fit, and Fabric

Four decisions get you the right women's base layer: Warmth Factor, fabric weight, fit, and size. Here is how Hot Chillys rates each one, plus full size charts and why GSM alone will not tell you how warm a base layer really is.

Rider wearing Hot Chillys Micro Elite XT base layer mountain biking in snow
3 min read
Is Micro-Elite™ XT the Same as La Montaña Fabric?

While both Micro-Elite™ XT and La Montaña are premium Hot Chillys fabrics designed for cold conditions, they are not the same....

Kid wearing Hot Chillys thermal base layers and beanie, insulated and moisture-wicking for sledding
4 min read
How to Choose the Right Size for Youth Thermal Clothing

How to Choose the Right Size for Youth Thermal Clothing When it comes to keeping our kids warm in chilly...

Snow-covered mountain and lake landscape, perfect conditions for Hot Chillys thermal gear
4 min read
Staying Cool and Protected: The Surprising Benefits of Thermal Base Layers for Summer

As the temperatures rise and the sun beats down, it's easy to assume that thermal base layers are only for...

Man hiking on a mountain
3 min read
Stay Warm in the Coldest Temperatures with Hot Chillys' Thermal Base Layers

As the temperatures start to drop and the winter chill sets in, it's time to start thinking about how to...

Pietro Simonetti
2 min read
Base Layer as winter sun protection
While sunscreen is essential for protecting exposed skin, it can be messy to apply and reapply throughout the day. Base layers, on the other hand, provide continuous protection without the need for constant reapplication.