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Warm, moisture-wicking Thermolite® base layers made for active outdoor school days, winter play, skiing, and cold-weather adventures.
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 Reima Lani Kids Thermolite® Base Layer Set is made for children who rarely stand still once they get outside. From outdoor school and snow forts to sledding hills and ski days, its warm synthetic fabric transfers moisture away from the skin to help kids stay comfortable while they move.
Soft flat seams, flexible construction, an elastic waist, and a longer back hem make the Lani an easy first layer under fleece, snow pants, snowsuits, and winter outerwear. It is a practical choice for active kids who need warmth without a bulky base layer slowing them down.
Why Parents Love It
- Made for active play: Thermolite® material transfers moisture away from the skin during energetic outdoor adventures.
- Warm without bulky layers: The synthetic thermal fabric provides a comfortable foundation for cold-weather layering.
- Soft flat seams: Flat seam construction is designed for extra comfort during all-day movement.
- Easy pull-on pants: An elastic waistband keeps dressing simple for busy winter mornings.
- Extra coverage: A longer back hem helps the top stay comfortably covered while kids bend, climb, and play.
Built for Real Outdoor Use
Winter play can go from a slow walk to full-speed snowbank climbing in minutes. The Lani is designed for those changing activity levels, using Thermolite® material to move moisture away from the skin while kids run, climb, ski, build snowmen, and explore.
Its streamlined two-piece design fits easily beneath mid layers and outerwear, making it a dependable part of an everyday winter layering system for outdoor school, family hikes, ski trips, and snowy afternoons close to home.
Things to Know
- Synthetic base layer: The Lani is a fully synthetic alternative to wool-based thermal layers.
- Moisture management: Thermolite® material is designed to transfer moisture away from the skin.
- Comfort details: Soft flat seams, an elastic waist, and a longer back hem support comfortable movement.
- Layering: Wear it as the first layer beneath fleece, insulation, and weather-protective outerwear as conditions require.
- Sizes: Reima currently offers the Lani from 12–18M through 14Y.
Product Details
- Product Type: Kids thermal base layer set
- Technology: Thermolite®
- Material: Synthetic polyester-based thermal fabric
- Moisture Management: Transfers moisture away from the skin
- Seams: Soft flat seams
- Waist: Elastic waistband
- Top: Longer back hem for additional coverage
- Use: Designed for sports and active play
- Set Includes: Long-sleeve thermal top and matching pants
- Sizes: 12–18M through 14Y
Why ODSS Recommends It
The Reima Lani is one of our favorite synthetic base layers for kids who spend winter in motion. Thermolite® moisture management makes it especially useful for outdoor school, skiing, sledding, hiking, and other activities where kids move between bursts of high-energy play and quieter moments outside.
We also like how simple it is to build into a winter routine. The soft seams, flexible fit, and easy two-piece design create a comfortable first layer that disappears beneath snow gear and lets kids get on with climbing, exploring, building, and making the most of the day outside.
Product Features
Materials & Care
Washing Instructions:
Materials:
Country of Origin: China
Style No: #5200031A
Pairs well with
How this gear performs
Each piece is rated for protection from water, wind and performance during play
Frequently Asked Questions
Why does my child need a base layer under their snow gear?
What’s the difference between the Reima Lani and a merino wool base layer?
Is the Lani warm enough for really cold winter days?
Is the Lani a good base layer for kids who sweat a lot?
Can kids wear the Lani for Outdoor School, skiing, and everyday snow play?
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
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