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Merino vs. Synthetic Base Layers

Woman, wearing athletic clothing, stretches her legs in a snowy winter scene

Whether you’re going on a hike, hunt, or another outdoor activity, wearing the proper layers, including your first layer—the base layer, is important. When choosing a base layer, one important factor to consider is the material—Merino wool or synthetic. Our Clothing Experts share the benefits and drawbacks of each material so that you can find the perfect layer for your outdoor activity and preferences.

About Merino Wool

Merino wool comes from Merino sheep and is well-known for effectively regulating temperature and keeping you dry. Unlike traditional wool that’s itchy, Merino wool is soft and lightweight next to your skin. Below are some pros and cons of Merino wool.

More from our Experts: A Guide to Understanding Merino Wool

Pros of Merino Wool

  • Warmth When Wet: Merino wool retains its warmth even when wet, making it a great choice if you’re in wet environments.

  • Odor Resistance: Due to its natural antimicrobial properties, Merino wool resists odors and stays fresh for longer periods between washes.

  • Breathability: Merino wool is highly breathable, allowing moisture vapor to escape, and keeping you comfortable and dry.

  • Softness: The fibers of Merino wool are fine and offer a super soft feel next to your skin.

Note: A common misconception about Merino wool is that it’s itchy. Most wool fibers are coarser, so the stiff ends of the fibers cannot bend when touching skin, causing that prickly sensation. Merino wool fibers are finer, so the fibers bend easily and feel much softer against the skin!

Cons of Merino Wool

  • Durability: It can be prone to pilling or abrasion.

  • Drying Time: Merino wool can take longer to dry once it does become wet.

  • Price Point: Merino wool is a high-quality natural fiber that requires extra processing, so it’s often more expensive compared to synthetic materials.

  • Shrinking: Take care when washing your Merino wool clothing, as exposure to heat can cause it to shrink or lose its shape.

About Synthetic Material

Synthetic material is made from polyester and nylon fibers and is known for its durability. Below are some pros and cons of synthetic material.

Pros of Synthetic Material

  • Price Point: Synthetic material is manmade and widely available, making it more cost-effective

  • Quick Drying: Synthetic material dries quickly when wet.

  • Durability: Synthetic fabrics are less prone to pilling and abrasion compared to Merino wool.

  • Ease of Care: Synthetic base layers are typically easy to clean and maintain, requiring less delicate washing and handling.

Cons of Synthetic Material

  • Breathability & Odor Retention: Synthetic materials are less breathable and retain odors more compared to Merino wool.

  • Warmth to Weight Ratio: To have the same level of warmth as Merino wool, a synthetic base layer needs to be heavier.

  • Comfort: Synthetic material isn’t as soft as Merino wool.

When choosing between Merino wool and synthetic base layers, consider what factors are most important for your specific needs. If you prioritize warmth, breathability, and odor resistance, Merino wool might be the ideal choice. However, if you value quick drying, durability, and cost-effectiveness, synthetic base layers may suit you better. If you have additional questions about layering for your hike, hunt, or other outdoor activity, stop into your local SCHEELS to speak with a Clothing Expert!