Finding a 100% merino wool sweater can sometimes be a challenge, especially if you’re committed to choosing pure, natural fibers. Many modern knits are blended with synthetics, but we have curated a list to include only 100% merino wool, and the exception of cashmere and shetland wool. We’ve handpicked only the best merino wool sweaters, whether you’re after a classic sweater for men, a soft hoodie for kids, or a cozy merino wool cardigan for women, a Merino wool base layer or sweater is the perfect way to stay warm in the winter without bulky layers.
Merino wool is naturally breathable, moisture-wicking, and odor-resistant, making it one of nature’s most technical fabrics. It keeps you warm when it’s cold, cool when it’s warm, and remains soft against your skin. If you are looking for a guide to the best 100% Merino wool base layer for men or women, we also have guides to that, too, as we wear these pieces from summer through winter, as they regulate your body temperature.
From long sleeve polos and base layers to versatile crew necks and turtlenecks, each piece on this list is functional without being boring. Whether you are on the hunt for a sweater for skiing and hiking, lounging, or even formal wear, we have a mix of recommendations to choose from. So, without further ado, here are our top picks for men, women, and children, as well as an FAQ section at the end of the article on merino wool itself.
This blog is supported by the community. We may earn a small commission if you choose to purchase through our links, which allows us to keep creating content. As an Amazon Associate, we earn from qualifying purchases. Learn more.
At a Glance
- Best 1/4 Zip Sweater for Men: Callaway Weather Series Men’s 1/4 Zip Golf Sweater
- Best Men’s Crew: Smartwool Men’s Classic Thermal Merino Wool Base Layer Crew
- Best Men’s Slim Fit Crew: AllSaints Men’s Mode Merino Crew Neck Sweater
- Best Men’s Modern Polo: AllSaints Men’s Mode Merino Long Sleeve Polo
- Best Merino Wool Hooded Sweater: Woolly Men’s Merino Pro-Knit Hoodie
- Best Women’s Everyday Crew: GRACE KARIN Cashmere Blend Crew
- Best Women’s Turtleneck Sweater: Pendleton Women’s Merino Turtleneck
- Best Women’s Cardigan: Brooks Brothers Women’s Merino Wool Cardigan
- Best Kids’ Merino Wool Sweater: Chanyarn Boys and Girls 100% Merino Wool Sweater
- Best Kid’s Merino Wool Hoodie: Woolino Merino Wool Kids Hoodie
Best Merino Wool Sweaters for Men
The Callaway Weather Series 1/4 Zip offers breathable insulation with its thermal Merino wool fabric and mock collar design. Its lightweight construction provides a soft, flexible feel, keeping you warm without restricting your swing. Big and tall sizes ensure a perfect fit for every player, and the machine-washable design makes care effortless.
Key Specs
Material 100% Merino wool
Fit regular fit with mock neck and quarter zip
Weight lightweight thermal design
Performance breathable, insulating, moisture-wicking
Care machine washable
This Smartwool favorite is the ultimate foundation for cold-weather comfort. Made from midweight Merino wool, it’s designed for breathability, moisture management, and natural odor control. The slim fit enhances movement while interlock knitting boosts thermoregulation. Perfect for layering under jackets or worn solo for warmth that lasts all day.
Key Specs
Material 100% Merino wool
Fit slim fit
Weight midweight thermal
Performance moisture-wicking, odor-resistant, breathable
Care machine wash and tumble dry
The Smartwool Merino 250 Base Layer 1/4 Zip is built for cold-weather and has thoughtful design details like flatlock seams and offset shoulders minimize chafing and improve comfort under packs or outer layers. The quarter-zip neckline adds flexibility for venting when you’re on the move, and the Merino’s natural odor resistance ensures freshness even after long days outdoors.
Key Specs
Material 100% Merino wool
Fit slim fit
Weight midweight thermal
Performance breathable, moisture-wicking, odor-resistant
Care machine washable
Origin made in the USA
Minimalist and modern, this AllSaints Merino crew delivers lightweight warmth with a refined edge. Its slim fit and signature Ramskull embroidery give it a sleek profile, while the soft Merino fibers ensure breathability and insulation year-round. A real go-to piece for smart-casual layering.
Key Specs
Material 100% Merino wool
Fit slim fit
Weight lightweight
Performance breathable and insulating
Care machine washable
This Brooks Brothers sweater is a classic style with its half-zip detail and of course, soft Merino texture. The ribbed cuffs and hem ensure a neat silhouette, while the premium wool fabric provides warmth without bulk. Ideal for pairing with collared shirts or worn solo.
Key Specs
Material 100% Merino wool
Fit regular fit half-zip
Weight medium
Performance temperature regulating and breathable
Care hand wash only
This long-sleeve polo from AllSaints adds sophistication to the everyday sweater lineup. Its three-button placket, ribbed trims, and soft Merino wool construction deliver a refined, breathable fit. Lightweight enough for layering but polished enough for the office or dinner out.
Key Specs
Material 100% Merino wool
Fit slim fit
Weight lightweight fine knit
Performance breathable and soft
Care machine washable
Although not strictly a merino wool sweater, this 100% wool jump was too nice not to add. This Shetland wool sweater blends rugged texture with polished craftsmanship. Made from pure New Zealand wool, it’s naturally warm and resistant to odors and stains. The traditional crewneck cut pairs effortlessly with jeans or chinos, making it a versatile staple for work or weekends.
Key Specs
Material 100% wool
Fit regular crewneck
Weight heavyweight
Performance odor and stain resistant
Care machine washable
The Merino.tech 100% Merino Wool Hoodie is a versatile, performance-driven layer designed for active lifestyles. Crafted from superfine 17.5-micron Merino wool, it’s luxuriously soft, breathable, and itch-free against the skin. The athletic slim fit offers a streamlined silhouette, while the quarter-zip neckline allows for easy temperature control during workouts or outdoor pursuits. It even comes with a matching pair of Merino wool socks, making it an excellent value set for year-round comfort.
Naturally moisture-wicking and odor resistant, this hoodie keeps you fresh from trail runs to travel days. The Merino fabric regulates body temperature in both cool and warm conditions, while its machine-washable design ensures simple care and long-lasting performance. Perfect for those who appreciate quality and comfort in equal measure.
Key Specs
Material 100% superfine Merino wool
Fit slim fit, order one size up for regular fit
Weight lightweight 190 g/m²
Performance moisture wicking, odor resistant, temperature regulating
Care machine washable, hand wash recommended for longevity
The Woolly Pro-Knit Hoodie combines everyday comfort with elevated performance. Made from 100 percent RWS-certified Merino wool, it offers a luxuriously soft feel with natural stretch and temperature regulation. Designed for life in motion, it keeps you warm without bulk and transitions effortlessly from morning hikes to coffee runs.
Key Specs
Material 100% RWS-certified Merino wool
Fit regular fit hoodie
Weight lightweight knit
Performance temperature regulating, moisture wicking, odor resistant
Care machine washable
Merino Wool Sweaters for Women
A beautifully soft and breathable option that blends 90% superfine wool with 10% cashmere. Although not all merino it’s still 100% natural fibers. Coming in multiple colors, it’s lightweight, durable, and perfect for daily wear from the office to travel.
Key Specs
Material 90% wool, 10% cashmere
Fit relaxed crewneck
Weight lightweight
Performance odor-resistant, moisture-wicking, breathable
Care hand wash only
The Pendleton Women’s Merino Turtleneck blends timeless sophistication with the warmth and softness of pure Merino wool. Crafted from 100% fine fibers, it’s lightweight yet cozy, offering breathable comfort that adapts naturally to temperature changes. The soft high-neck design and smooth silhouette make it a versatile staple for layering under jackets or wearing solo. Its ribbed cuffs, hem, and neckline create a polished finish that holds its shape beautifully over time. The relaxed fit drapes elegantly across the body, flattering every silhouette while maintaining comfort.
Key Specs
Material 100% Merino wool
Fit relaxed fit with straight cut
Weight lightweight knit
Performance temperature-regulating and breathable
Care hand wash only
This Pendleton Merino turtleneck is a timeless wardrobe staple. Made from luxuriously soft Merino wool, it’s lightweight yet insulating, ideal for layering or wearing on its own. The ribbed neck and cuffs give it structure, while its soft drape flatters every silhouette.
Key Specs
Material 100% Merino wool
Fit regular fit turtleneck
Weight lightweight
Performance temperature regulating and soft
Care hand wash only
Elegant and versatile, this Brooks Brothers turtleneck offers effortless layering for work or casual days. Crafted from 100% Merino wool, it’s warm, breathable, and beautifully structured. Coming in four neutral colors.
Key Specs
Material 100% Merino wool
Fit regular fit cardigan
Weight medium
Performance breathable, warm, durable
Care hand wash only
Elegant and versatile, this Brooks Brothers cardigan offers effortless layering for work or casual days. Crafted from 100% Merino wool, it’s warm, breathable, and beautifully structured and comes in multiple colors.
Key Specs
Material 100% Merino wool
Fit regular fit cardigan
Weight medium
Performance breathable, warm, durable
Care hand wash only
This fun Pendleton crew features a cropped, slightly boxy fit with alpine-inspired detailing for a touch of character. Made from medium-weight Merino wool, it’s soft, warm, and ideal for transitional seasons.
Key Specs
Material 100% Merino wool
Fit classic cropped fit
Weight medium
Performance warm, breathable, odor-resistant
Care hand wash only
Made from superfine Australian Merino wool, the Chanyarn Women’s Hoodie delivers the ultimate combination of softness, warmth, and elegance. Its 17.5-micron fibers create a buttery-smooth texture that rivals cashmere, while the fine 12-gauge knit gives it a lightweight yet cozy feel. The design features a casual hood, front pocket, and relaxed fit, offering versatility for lounging, travel, or layered.
Key Specs
Material 100% superfine Australian Merino wool (17.5–17.9 µm)
Fit regular fit with hood and front pocket
Weight lightweight 12-gauge knit
Performance soft, breathable, warm, anti-pilling
Care hand wash only
Best Kids Merino Wool Sweaters
Made from 100% superfine Australian Merino wool, the Chanyarn Crewneck Sweater offers exceptional softness and comfort for little explorers. With a fiber fineness of 17.5–17.9 microns and a densely knitted 2-ply yarn, it’s beautifully smooth, warm, and built to resist pilling. The advanced 3D seamless knitting technology means no bulky shoulder or side seams, allowing kids to move freely without irritation or rubbing. Available in multiple child-friendly sizes, from toddlers to pre-teens, the Chanyarn Crew offers premium Merino comfort that’s gentle on sensitive skin and built to last.
Key Specs
Material 100% Australian superfine Merino wool (17.5–17.9 µm)
Construction 3D seamless knit for comfort and flexibility
Fit available in sizes XXS–XXXL
Care hand wash only
Origin imported
This Woolino Kids Sweatshirt brings together everyday practicality and the natural performance of Merino wool. Crafted from 97% Merino wool and 3% elastane, it’s ultra-soft, lightweight, and breathable, offering temperature regulation that keeps kids cozy in winter and cool in summer. The relaxed fit, ribbed cuffs, and hem make it easy to wear for school, travel, or weekend adventures. So although it’s 97% merino, the elastane allows shape and pull for the kids to feel free to run wild.
Key Specs
Material 97% Merino wool, 3% elastane
Fit relaxed and slightly oversized
Care machine washable
Features moisture-wicking, odor-resistant, temperature-regulating
Origin imported
The Woolino Kids Merino Hoodie is an instant favorite. Made from 97% Merino wool and 3% elastane, it’s soft, naturally stretchy, and ideal for year-round wear. The fabric’s natural thermoregulating properties keep kids comfortable in any climate, while the full zip, ribbed cuffs, and handy pockets make it practical for everyday.
Key Specs
Material 97% Merino wool, 3% elastane
Design full-zip hoodie with ribbed cuffs and hem
Fit relaxed, designed to allow for growth
Care machine wash on low temperature
Origin imported
The SAOL Aran Cardigan blends heritage Irish design with 100% Merino wool softness, offering timeless warmth and style for children. Finely knit from pure Merino, it provides exceptional comfort and breathability, keeping kids warm in cool weather yet airy enough for active wear. The natural wool fibers help regulate temperature while resisting moisture, ensuring all-day comfort. Drawing inspiration from traditional Aran patterns, this cardigan showcases cable, honeycomb, moss, and basket stitches.
Key Specs
Material 100% Merino wool
Design Aran-style cardigan with wooden buttons
Fit available for ages 6 months to 12 years
Care hand wash only
Origin made in Ireland
The Chanyarn Girls’ 100% Merino Wool Cardigan is a soft, seamless knit made with premium Australian superfine Merino wool. Using 3D seamless knitting technology, it eliminates bulky stitches at the shoulders and sides, creating a smooth, flexible fit that moves with your child. The 17.5–17.9 micron wool fibers deliver a soft feel while maintaining warmth and breathability throughout the seasons.
Key Specs
Material 100% Australian superfine Merino wool
Construction seamless 3D knit for softness and stretch
Fit available in sizes XXS–XXXL
Care hand wash only
Origin imported
Why Choose a Merino Wool Sweater?
Merino wool is nature’s ultimate performance fabric. Unlike standard wool, it’s fine, smooth, and itch-free, providing luxurious comfort against the skin. Its natural temperature-regulating and moisture-wicking abilities make it perfect for year-round wear, keeping you cozy in winter and cool in summer.
Also, Merino fibers are renewable and biodegradable, breaking down naturally without releasing microplastics. Whether it’s a merino wool hooded sweater for lounging or a refined turtleneck for layering, you’re investing in both quality and environmental responsibility. The fibers are fine and soft, so they don’t itch like traditional wool, making them comfortable for all-day wear. Smartwool is a great resource if you are looking for more info.
How to Care for Your Merino Wool Sweater
Wondering how to wash a merino wool sweater without ruining it? The secret lies in gentle care. Always use cool water and mild detergent, and avoid bleach or fabric softeners. Hand wash or use your machine’s delicate cycle, then reshape and lay flat to dry.
While some brands are machine washable, it’s always worth checking the care label to prevent shrinkage. For long-lasting softness, avoid high heat.
FAQs
Will merino wool shrink?
Merino wool can also shrink if washed or dried at high temperatures. Always wash in cold or lukewarm water and air dry flat to maintain shape and size.
How do I wash a merino wool sweater?
Use a gentle cycle or hand wash with mild detergent, avoiding harsh chemicals. Lay flat to dry and reshape while damp for best results.
Is merino wool itchy?
No, high-quality merino wool is incredibly soft and non-itchy thanks to its fine fibers, which feel smooth against the skin.
Can you wear merino wool year-round?
Yes. Merino also regulates temperature naturally, keeping you warm in winter and cool in summer, making it suitable for all seasons.
Enjoyed our guide? Read more
Best Merino Wool Socks
The Ultimate Women’s Base Layer Merino Wool Guide
Best Skiing Backpack for the Slopes
