View all Helly Hansen
Free Shipping $75 and over | Fast Delivery | Designed for Happy Kids!
Warm junior merino base layer set with LIFA® moisture management and breathable warmth for skiing, outdoor school, and cold winter days.
Find Your Size
European sizes are based on your child’s height in centimeters. Because kids of the same age can be different sizes, height is the best guide for fit.
Enter your child’s height in inches, and we’ll show the closest CM size range. This correlates to the first number in the size option. ie: 98 or 122. If CM sizing is not provided, simply choose the age provided.
💡 Tip: These are general guidelines. Always check specific brand size charts when possible, as sizing can vary between manufacturers.
Product Description
The Helly Hansen LIFA® Merino Midweight Juniors Base Layer Set combines moisture-managing LIFA® technology with the breathable warmth of merino wool for active kids and teens spending cold winter days outside.
This two-piece thermal set uses Helly Hansen's 2-layer LIFA® Merino construction to bring two useful cold-weather materials together. LIFA® technology helps move moisture away from the body, while soft merino wool provides breathable warmth. It's a practical first layer for skiing, outdoor school, hiking, snow play, and everyday winter adventures.
Why Parents Love It
- Two-piece set: Includes a long-sleeve base layer top and matching thermal bottoms for easy head-to-toe layering.
- LIFA® moisture management: Helly Hansen's LIFA® technology helps move moisture away from the body during active outdoor days.
- Merino warmth: Soft merino wool provides breathable warmth for cold-weather activities.
- Made for layering: The midweight construction works as a comfortable first layer beneath fleece, snow pants, ski jackets, and other winter outerwear.
- Comfortable construction: Flatlock seams help create a smooth feel during active, all-day wear.
- Ready for winter adventures: Designed for activities including skiing and hiking, with the warmth and moisture management that make it useful for outdoor school and everyday winter play, too.
Built for Real Outdoor Use
A good winter layering system starts next to the skin. When kids are hiking snowy trails, skiing, climbing snowbanks, or moving through a full outdoor school day, their base layer needs to balance warmth with moisture management.
LIFA® Merino brings together Helly Hansen's moisture-wicking LIFA® technology and soft merino wool in a two-layer construction designed for active cold-weather use. The result is a versatile base layer that fits naturally into the winter routines of kids and teens who would rather be outside.
Things to Know
- Midweight base layer: Designed as a cold-weather first layer beneath insulating and protective outer layers.
- Two-layer technology: LIFA® technology helps wick moisture while merino wool provides breathable warmth.
- Merino blend: The fabric is 57% merino wool and 43% polypropylene.
- Responsible wool: Helly Hansen states that the wool used in this product is Responsible Wool Standard certified.
- True-to-size feedback: Helly Hansen reports that customers describe the set as fitting true to size and recommends choosing the regular size.
- Wool-specific care: Helly Hansen recommends using wool detergent, avoiding fabric softener, washing inside out, and not wringing the garment.
Product Details
- Product type: Juniors two-piece midweight base layer set
- Brand: Helly Hansen
- Model: LIFA® Merino Midweight Base Layer Set
- Style number: 49403
- Included: Long-sleeve base layer top and matching bottoms
- Technology: LIFA® MERINO and LIFA® STRIPE
- Construction: Two-layer LIFA® and merino wool construction
- Fiber content: 57% merino wool, 43% polypropylene
- Seams: Flatlock seams for added comfort
- Waist: Elastic waist
- Durability: 4/6 Helly Hansen performance rating
- Weight: 250g
- Wool standard: Responsible Wool Standard wool certified by IDFL
- Additional detail: Solution-dyed main fabric
- Vendor-listed uses: Hiking, resort skiing, and urban & city life
- Care: Use wool detergent, do not use fabric softener, wash inside out, and do not wring
Why ODSS Recommends It
ODSS recommends the Helly Hansen LIFA® Merino Midweight Set for juniors who need a warm, moisture-managing first layer for outdoor school, skiing, hiking, snow play, and long winter days outside. Its combination of LIFA® technology and merino wool makes it especially useful when kids are moving between active play and colder, quieter stretches outdoors.
We like this set because good winter adventures often start with good layering. A comfortable base layer makes it easier to build a practical cold-weather system around the day's conditions—whether that means heading to the ski hill, walking snowy trails, or pulling on snow gear for another outdoor school morning.
Product Features
Materials & Care
Washing Instructions:
Materials:
Country of Origin: Imported
Style No: #40943
Pairs well with
How this gear performs
Each piece is rated for protection from water, wind and performance during play
Frequently Asked Questions
What makes the Helly Hansen LIFA® Merino Base Layer different from a regular thermal set?
Is this a good base layer for skiing and outdoor school?
How warm is the LIFA® Merino Midweight Set?
How does the Juniors LIFA® Merino Set fit?
How should I wash the Helly Hansen LIFA® Merino Base Layer Set?
FOUNDED BY WOMEN. BUILT FOR ADVENTURE.
ODSS was started by mothers who saw firsthand how time outside builds resilient, confident kids. What began as helping outdoor schools equip students for all-weather learning grew into a bigger mission: Help families raise resilient, confident kids by making it easier for children to stay outside longer.
Testimonials
For us, the right gear from ODSS supports what we believe most about childhood. When children are able to be outside every day, in all seasons, they become tenacious, confident, and develop an authentic relationship with the land.
— RAIN OR SHINE SCHOOL
Working with Outdoor School Shop has transformed our outdoor school community. Parents love knowing their children are consistently and reliably equipped—and that nothing is forgotten or comes home covered in mud.
— RANDOLPH SCHOOL
Our students get outside in all temperatures and having the right gear makes a world of difference. @outdoorschoolshop has gear appropriate for all seasons, has a directory to search for nature schools, and layering guides to help families know how to dress children for the weather
— HEMLOCK HILL
At The Thistle and Root, I always recommend ODSS gear for anyone who believes that children grow best through nature—so dress for it.
— THISTLE & ROOT
Ordering bulk with Outdoor School Shop was just as easy and seamless as I had hoped! As we open up a new program, preparing our first group of kiddos for any weather was at the top of our priority list, and ODSS came through with insight, expertise, and the coolest, most dependable gear around! Thank you ODSS!
— SIDNEY RIDGE
Outfitting the Programs That Keep Kids Outside
Authorized bulk partner for premium outdoor brands
