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Kids Underwear
  1. Gear Library
  2. Kids Clothing
  3. Kids Underwear
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    Lightweight Crew Long Underwear Top - Kids'
    REI Co-op

    Start layering your littles with the kids' warm, breathable REI Co-op Lightweight Crew Long Underwear top. It features a made-to-move design and all of the comfy for a day of play.

    Weight: Lightweight

    Underwear TopsBase Layer Tops

    Lightweight Long Underwear Bottoms - Infants'/Toddlers'
    REI Co-op

    Layer your little one with the REI Co-op lightweight long underwear bottoms for infants and toddlers. Designed for warmth, these bottoms are easy to pull on and absorb moisture as it comes.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Lightweight Long Underwear Bottoms - Kids'
    REI Co-op

    Layer your hiking pal with the REI Co-op lightweight long underwear bottoms for kids. Designed for warmth, these bottoms are easy to pull on and wick moisture for comfort.

    Weight: Lightweight

    Underwear BottomsBase Layer Bottoms

    Long Distance Bra - Girls'
    Athleta

    With its buttery soft feel and support that's like a gentle hug, the girls' Athleta Long Distance bra might be her new favorite for school, practice and play.

    UnderwearSports Bras

    Long Distance Bra 2.0 - Girls'
    Athleta

    Designed with soft, supportive fabric that's great for school, practice and playground time, the girls' Athleta Long Distance 2.0 bra helps young adventurers keep moving in comfort.

    UnderwearSports Bras

    Merino 260 Tech Long-Sleeve Half-Zip Thermal Top - Kids'
    Icebreaker

    Suit them up for cold epics in the kids' Icebreaker Merino 260 Tech Long-Sleeve Half-Zip Thermal top. This midweight base layer is designed for easy layering and temperature regulation on active days.

    Weight: Midweight

    Underwear TopsBase Layer Tops

    Merino Midweight Base Layer Bottoms - Kids'
    REI Co-op

    Ideal for cold weather, the kids' REI Co-op merino midweight base layer bottoms are soft—not scratchy—naturally regulate temp and made with wool that's certified to the Responsible Wool Standard.

    Weight: Midweight

    Underwear BottomsBase Layer Bottoms

    Merino Midweight Base Layer Top - Kids'
    REI Co-op

    Oh so soft and not itchy, the kids' REI Co-op merino midweight base layer top is an ideal first layer for cold weather. It naturally regulates temp and is certified to the Responsible Wool Standard.

    Weight: Midweight

    Underwear TopsBase Layer Tops

    Midweight Crew Long Underwear Top - Kids'
    REI Co-op

    Make your kiddo's base layer the warm, breathable, kids' REI Co-op Midweight Crew long underwear top and they'll play happily outside all day. It's great on its own for inside play, too.

    Weight: Midweight

    Underwear TopsBase Layer Tops

    Midweight Crew Long Underwear Top - Toddlers'
    REI Co-op

    Make your tot's base layer the warm, breathable, toddlers' REI Co-op Midweight Crew long underwear top and they'll play happily outside all day. It's great on its own for inside play, too.

    Weight: Midweight

    Underwear TopsBase Layer Tops

    Midweight Long Underwear Bottoms - Kids'
    REI Co-op

    The kids' REI Co-op Midweight Long Underwear Bottoms are warm and very good at wicking moisture, making them an ideal base layer for highly aerobic cold-weather fun, like skiing and snowshoeing.

    Weight: Midweight

    Underwear BottomsBase Layer Bottoms

    Midweight Long Underwear Bottoms - Toddlers'
    REI Co-op

    The toddlers' REI Co-op Midweight Long Underwear Bottoms are warm and very good at wicking moisture, making them an ideal base layer for highly aerobic cold-weather fun, like skiing and snowshoeing.

    Weight: Midweight

    Underwear BottomsBase Layer Bottoms

    Moomin Print Trygg Organic Cotton Onesie - Infants'
    Reima

    Made from soft organically grown cotton fabric, the Reima Moomin Print Trygg onesie has an offset zipper for easy dressing and long rib-knit cuffs with extra room for growth.

    Weight: Lightweight

    UnderwearUnion Suits

    Moomin Sovare Organic Cotton Reversible Baby Onesie - Infants'
    Reima

    Stripes or Moomin print? Both! The soft Reima Moomin Sovare babies' onesie is made from organically grown cotton with a cute reversible style and long rib-knit cuffs that have extra room for growth.

    Weight: Lightweight

    UnderwearUnion Suits

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