We have been using Smartwool Merino 250 baselayers with my oldest daughter for 3 years now. She was able to get two years out of one set before sizing up with only a few minor repairable holes. They are still in great shape for little sister. They are warm and soft! TMM Team Member Jami Weak durability keeps this top a dedicated base layer, seams found converging in pinch points, pricey

This is exemplified by certifications like the Responsible Wool Standard and ZQ-certified wool, assuring consumers that the well-being of sheep and the environment is a top priority. Responsible wool sourcing not only aligns with ethical principles but also contributes to a more sustainable supply chain. Recycled synthetic materials If it’s warm outside, a lightweight layer might be the only layer you wear. Our men’s base layer tester, for example, gets sunburned easily, so he wears lightweight, long-sleeved base layers year-round. The Patagonia Capilene Midweight excels as a baselayer compared to other synthetic layers we considered. It’s comfortable, which is an essential aspect of next-to-skin layers.While synthetic material is superior to wool in durability, wool is superior to synthetic because it doesn’t retain odors. Odor occurs due to a combination of moisture and bacteria. Bacteria naturally occur on the surface of our skin. Bacteria thrive in warm, moist conditions, like those created from sweat. That’s why after consistent use, synthetic materials start to retain odors-even after washing. On the other hand, Wool is naturally odor-resistant. Because of its unique natural oils, it’s better able to release odors in the wash. Here are some questions to help point you in the direction of the base layer of your dreams: HOW MUCH ARE YOU WILLING TO SPEND ON A BASE LAYER? Fit is also important, but it depends on your preferred outdoor activity. Tighter tops will trap more warmth, but opt for a looser cut if freedom of movement is a priority or if you’ll be wearing it for several hours.

WHAT IS YOUR PREFERRED OUTDOOR ACTIVITY? ARE YOU LOOKING TO WEAR YOUR BASE LAYER UNDER OTHER CLOTHING? Zip base layers help you manually vent off some heat when you're working hard. Zip lengths go from ¼ zip to ½ zip. Zip base layers tend to be more technical and are often more expensive.Since it’s hard to find that sweet spot online, we recommend trying on base layers before you buy, or buying from a retailer with a generous return policy, like REI Co-op. A snugger fit is ideal for recreating in cool or colder weather. A looser fit is better for recreating in warmer or hot weather. WHAT BASE LAYER IS THE MOST STYLISH? More and more companies are joining the effort to be more Earth-friendly in the production and sales of their products. We wanted to see how those brands compared to more traditional producers. For 2023, it is made with ZQ-certified merino wool to ensure environmental, social and economic sustainability while safeguarding animal welfare. In addition to traditional colorways, it’s also available with plant dyes, which we love.

Whichever detergents or washes you use, always opt for machine washing, as handwashing can leave behind residues and films. If they are using them and don’t love them or avoid wearing them then it might be worth trying another brand to get a fit, fabric, or style that works better. What we love about Ellas wool is that the merino wool is super soft and warm. They claim to be buttery soft, and I can vouch for how warm and cozy they are.

MAKE IT PERSONAL

If it’s cold, you may intend to pile on the layers. But having a lightweight layer as your next-to-skin layer gives you more flexibility for temperature adjustment while doing something active. This allows you to keep the warmth against your body and adjust as needed. Many folks will layer a heavyweight base layer over a lightweight one for very cold aerobic sports. The goal behind this particular line was to create a baselayer that was relatively thin, stretchy and soft while also being durable. One of our favorite super stretchy, soft, and warm synthetic base layers for cool to cold conditions Due to the natural odor resistant properties of merino, your merino pieces can go quite a while without a washing. They do NOT need a wash after every wear. TMM Team Member Jami only does a wool clothing load every 3-4 weeks, depending on use (and that’s even on her sweaty running Merino!).

Reima seems to be in a league of their own as far as kids’ gear is concerned and their baselayers are no exception. This Finnish brand is constantly impressing our team with all their well made gear.Breathable and stretchy, useful features such as hood and thumb loops, highly adaptable to wide range of conditions