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Warm merino wool-blend zip mid layer with a brushed inside for comfortable outdoor school days, winter play, and everyday 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 Mahin Kids Merino Wool Zip Mid Layer Jacket brings dependable wool warmth to cold-weather layering without the bulk of a heavily insulated jacket. Made from an 80% merino wool blend with a softly brushed interior, it is designed for temperature control and comfortable layering through active outdoor days.
Wear the Mahin over a base layer and underneath a rain jacket, winter coat, or snowsuit when temperatures drop. The full-length zipper makes changing layers simple, while a chin guard adds comfort at the top of the zip. Soft flat seams and ribbing at the collar, waist, and cuffs help create a comfortable fit for movement and everyday wear.
Pair it with the Reima Misam Merino Wool Pants for a coordinating head-to-toe wool mid-layer system made for cold outdoor school mornings, snowy adventures, trail walks, camping trips, and everyday winter routines.
Why Parents Love It
- Warm without heavy bulk: The merino wool blend makes an excellent insulating mid layer underneath cold-weather outerwear.
- Soft brushed inside: The reverse of the fabric is brushed for added warmth and a cozy feel.
- Made for active layering: Wool is naturally suited to temperature control as kids move through changing activity levels.
- Easy full-zip design: The full-length zipper makes it simple to add or remove a layer as conditions change.
- Comfort-focused details: Flat seams and a zipper chin guard help make the jacket comfortable during long days of wear.
- Matching wool pants available: Pair with the Reima Misam Merino Wool Pants to create a complete winter mid-layer set.
Built for Real Outdoor Use
The Mahin is designed to work as a warm mid layer underneath protective outerwear. It is an especially practical choice for outdoor school, forest school, winter walks, sledding, camping, playground days, and other cold-weather adventures where kids need warmth without excessive bulk.
The full-zip design also makes it easy to manage changing temperatures throughout the day. Kids can wear it underneath outerwear outside and continue wearing it as a cozy sweater indoors, making it a versatile piece for real family routines.
Things to Know
- Designed as a mid layer: The Mahin provides wool warmth but is not a waterproof or windproof outer jacket.
- Merino wool blend: The main material is 80% merino wool and 20% polyester.
- Brushed reverse: The inside is softly brushed to provide additional warmth.
- Full-length zipper: A chin guard adds comfort where the zipper meets the neck.
- Ribbed finish: Ribbing at the collar, waist, and cuffs supports a comfortable fit.
- Matching pants: The Reima Misam Merino Wool Pants coordinate with the Mahin for a complete wool mid-layer system.
- Size range: Reima lists Mahin in sizes 92–164, approximately 2T–14Y.
Product Details
- Product: Kids merino wool zip mid-layer jacket
- Brand: Reima
- Model: Mahin
- Main Material: 80% merino wool, 20% polyester
- Fabric: Merino French terry
- Interior: Soft brushed reverse for added warmth
- Seams: Soft, flat seams for added comfort
- Closure: Full-length zipper with chin guard
- Trim: Ribbing at collar, waist, and cuffs
- Certification: Responsible Wool Standard certified wool
- Layering: Mid layer
- Matching Bottom: Reima Misam Merino Wool Pants
- Best Use: Outdoor school, winter layering, cold-weather play, hiking, camping, and everyday outdoor adventures
Why ODSS Recommends It
ODSS recommends the Reima Mahin Kids Merino Wool Zip Mid Layer Jacket for outdoor school, cold-weather layering, winter play, hiking, camping, and everyday outdoor adventures. The 80% merino wool blend provides warm, temperature-regulating performance, while the brushed interior, flat seams, and full-length zipper make it practical for active kids and changing temperatures throughout the day.
Pair the Mahin with the Reima Misam Merino Wool Pants for a complete merino wool mid-layer set under rain gear, snow gear, or a winter snowsuit. Together, they create an easy layering system for cold school mornings, snowy playgrounds, trail walks, and longer days outside.
Product Features
Materials & Care
Washing Instructions:
Materials:
Country of Origin: China
Style No: #5200038A
Pairs well with
How this gear performs
Each piece is rated for protection from water, wind and performance during play

Frequently Asked Questions
What is the Reima Mahin best used for?
Is the Reima Mahin a jacket or a mid layer?
Is the Reima Mahin waterproof?
What is the Reima Mahin made from?
Is there a matching bottom for the Reima Mahin?

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
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