• Front view of the Reima Kinsei kids' merino wool base layer set in melange grey, featuring a long-sleeve thermal top and matching pants.
  • Front view of the complete Reima Kinsei kids merino wool base layer set in navy blue, featuring a long-sleeve top and leggings against a white background.
  • Back view of the complete Reima Kinsei kids merino wool base layer set in navy blue, showing the back of the long-sleeve top and leggings against a white background.
  • Front view of the navy blue long-sleeve merino wool base layer top from the Reima Kinsei kids set, against a white background.
  • Front view of the navy blue merino wool base layer leggings from the Reima Kinsei kids set, against a white background.
  • Detailed close-up shot of the navy blue merino wool base layer top from the Reima Kinsei set, showing the texture of the fabric, flat-lock stitching on the shoulder, and sleeve cuff.
  • Detailed close-up of the elastic waistband on the navy blue merino wool base layer leggings from the Reima Kinsei set, highlighting the soft fabric and construction.
  • Detailed close-up of the bottom cuffs of the navy blue merino wool base layer leggings from the Reima Kinsei set, showing the precision stitching and fabric texture.
  • Detailed macro close-up of the navy blue knitted merino wool fabric used in the Reima Kinsei kids base layer set, swirled to display its soft texture.
  • Front view of the brown retail cardboard box for the Reima Kinsei kids merino wool base layer set, featuring a red 'Stay warm' label and a circular cutout displaying the navy blue fabric.
  • Front view of the Reima Kinsei kids' merino wool base layer set in grey pink, featuring a long-sleeve thermal top and matching leggings against a white background.
  • A child lying comfortably on their back with their legs raised in the air, wearing the grey pink Reima Kinsei merino wool base layer set paired with thick purple and pink Reima thermal ski socks.
  • Back view of the complete Reima Kinsei kids' merino wool base layer set in grey pink, showing the flexible and comfortable fit of the thermal top and bottoms.
  • Front view of the grey pink long-sleeve merino wool base layer top from the Reima Kinsei kids' set.
  • Front view of the grey pink merino wool base layer leggings from the Reima Kinsei kids' thermal set.
  • Close-up of the neckline, shoulder, and sleeve on the grey pink Reima Kinsei kids' merino wool top, highlighting the comfortable flat seams designed to prevent chafing.
  • Detailed close-up of the elastic waistband and soft knit fabric on the Reima Kinsei kids' merino wool base layer leggings in grey pink.
  • Detailed close-up of the bottom ankle cuffs on the grey pink merino wool base layer leggings from the Reima Kinsei set, showing the precision flat-lock stitching.
  • Detailed macro close-up of the grey pink knitted merino wool fabric used in the Reima Kinsei kids' base layer set, swirled to display its soft and warm texture.
  • Front view of the retail cardboard packaging for the Reima Kinsei kids' merino wool base layer set, featuring a red "Stay warm" label and a circular cutout displaying the grey pink fabric.
  • A happy child hugging herself to stay cozy while wearing the full Reima Kinsei kids' merino wool base layer set in melange grey.
  • Back view of the Reima Kinsei kids' merino wool thermal base layer set in melange grey, showing the streamlined, flexible fit of the top and bottoms.
  • Front view of the long-sleeve thermal top from the Reima Kinsei kids' merino wool base layer set in melange grey.
  • Front view of the thermal pants from the Reima Kinsei kids' merino wool base layer set in melange grey.
  • Close-up of the neckline, shoulder, and sleeve on the melange grey Reima Kinsei kids' merino wool base layer top, highlighting the comfortable flat seams designed to prevent chafing.
  • Close-up of the comfortable elastic waistband and soft knit fabric on the Reima Kinsei kids' merino wool base layer pants in melange grey.
  • Close-up of the pant legs on the Reima Kinsei kids' merino wool base layer bottoms in melange grey, highlighting the comfortable flat seams.
  • Close-up detail of the soft, melange grey merino wool knit fabric used in the Reima Kinsei kids' thermal base layer set.
  • Retail packaging for the Reima Kinsei kids' merino wool base layer set, featuring a red label that reads "Stay warm" and a cutout window displaying the melange grey fabric inside.
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Reima

Reima Kinsei Kids' Merino Wool Base Layer Set

Reima Kinsei Kids' Merino Wool Base Layer Set

$74.96 USD
$99.95 USD $74.96 USD
On Sale Sold out
Free shipping on orders over $100 30-day returns
Size
Color
Color: Melange Grey

In stock
  • Responsible wool and Made with mulesing free wool
  • Thermal control
  • Elastic material
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Product information

  • Soft merino wool/lyocell mix for perfect thermal control
  • Lyocell fiber provides comfort and adds durability
  • Keeps you warm even when wet
  • Soft, flat seams for extra comfort: no chafing
  • For cold weather
  • Side panel on sleeve and body part for free movement
  • Elastic waist
  • Longer back hem

Sustainability

Responsible Wool Standard certified by Control Union CU872203

Materials

Main material:

Top:

Merino wool-lyocell blend RWS:

  • 72% wool - merino
  • 28% lyocell


Bottom:

Merino wool-lyocell blend RWS:

  • 72% wool - merino
  • 28% lyocell

Lining material:

n/a

Insulation:

n/a

Performance

  • Elastic material
  • Contains wool
  • Thermal control

Product care

Customer Reviews

The Reima Kinsei is a kids' merino wool set designed to keep active children warm, dry, and comfortable in cold winter conditions. The two-piece Kinsei set from Reima — long-sleeve top and thermal bottoms — pairs a 72% merino wool and 28% lyocell blend for natural warmth with exceptional softness against sensitive skin.

Why the Reima Kinsei Stands Out

The Kinsei by Reima solves the core challenge of winter layering for children: staying warm without overheating or feeling restricted. Merino wool regulates body temperature naturally, wicking moisture away from the skin during high-output activities like skiing, sledding, or playing in the snow. Lyocell fibers make the fabric noticeably softer than standard wool, so kids who usually refuse itchy winter clothing will actually want to wear it.

Reima Kinsei Construction Details

Every seam on the Reima Kinsei set is flatlock-stitched, which eliminates chafing points where a shell jacket or ski pants press the fabric against the body. The highly elastic knit structure moves with the child rather than against them, maintaining full range of motion during active play. The thermal bottoms include a flexible waistband that stays secure without digging in during long days outdoors.

Reima Kinsei Key Features

  • 72% merino wool / 28% lyocell — natural insulation that breathes and regulates temperature
  • Ultra-soft against skin — lyocell prevents the irritation common with standard wool
  • Flatlock seams throughout — no pressure points under ski gear or heavy outerwear
  • Highly elastic knit — unrestricted movement for active kids
  • Two-piece set — matching top and bottoms sold together
  • Machine washable — gentle cycle with wool detergent

Reima Kinsei Specifications

  1. Composition: 72% merino wool, 28% lyocell
  2. Set includes: Long-sleeve thermal top + elastic waist thermal bottoms
  3. Seam type: Flatlock throughout
  4. Use case: Winter sports, outdoor play, everyday cold-weather layering
  5. Care: Machine wash gentle, wool-specific detergent

The Reima Kinsei merino wool set is built for children who spend real time outdoors in serious winter conditions. It performs under ski jackets, snowsuits, and heavy parkas — keeping kids at the right temperature from first run to last.