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    Home / BOY / THERMO CLOTHING / Thermal underwear

    Boys' thermal underwear

    Boys' thermal underwear serves as a base layer, which is designed to regulate body temperature and wick away moisture, which is crucial for maintaining comfort during activities and movement.
    Hypoallergenic materials are typically used in the production of boys' thermal underwear, which do not irritate the skin and are therefore pleasant and comfortable.
    Actively wicks away sweat, so the boy feels comfortable and comfortable, and there is no risk of feeling cold or wet.

    Bestsellers

    Smallstuff kids' merino wool leggings powder melange 0912-12 MERINO WOOL, NON-PILL
    Skladem (4 pcs)
    110992/74
    Was: €30,10  (–30 %)
    from €20,80
    Mikk - line children's wool leggings 6018 - Melange Denver MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    117078/74
    Was: €25,70  (–31 %)
    from €17,70
    Smallstuff children's merino wool bodysuit natural melange 0902-34 MERINO WOOL, NON-PILL
    Vyprodáno
    110701/56
     
    €29,60

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    67 items total
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    67 items to display

    List of products

    0912 12, Leggings, Powder Melange
    Action Tip BF 20%
    €30,10 up to –30 %
    Smallstuff kids' merino wool leggings powder melange 0912-12 MERINO WOOL, NON-PILL
    Skladem (4 pcs)
    from €20,80
    + more
    110992/74
    6018 Melange Denver Extra 1
    Action
    from €25,70 up to –31 %
    Mikk - line children's wool leggings 6018 - Melange Denver MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    from €17,70
    + more
    117078/74
    0902 34, Body LS, Nature Melange
    Action Tip Bestseller BF 20%
    Smallstuff children's merino wool bodysuit natural melange 0902-34 MERINO WOOL, NON-PILL
    Vyprodáno
    €29,60
    + more
    110701/56
    6015 Melange Offwhite Extra 1
    Action
    €35,80 up to –31 %
    Mikk - line baby wool bodysuit 6015 - Melange OffWhite MERINO WOOL
    Skladem (1 pcs)
    from €24,70
    + more
    117102/68
    0902 06, Body LS, Brown
    Action Tip BF 20%
    €29,60 up to –30 %
    Smallstuff children's merino wool bodysuit brown drop needle 0902-06 MERINO WOOL, NON-PILL
    Skladem (2 pcs)
    from €20,50
    + more
    110686/56
    MarMar baby wool bodysuit with details 100-661-04-0370 MERINO WOOL
    Action SALE 40% OFF
    €36,60 up to –40 %
    MarMar baby wool bodysuit with details 100-661-04-0370 MERINO WOOL
    Skladem (1 pcs)
    from €21,60

    Soft long-sleeved bodysuit from the collection MarMar Wool Pointelle – delicate pattern, snap fastening and material combining merino wool and viscose for comfort and...

    + more
    117903/56
    5972 140 A
    Action
    €41,20 –31 %
    Color Kids children's thermal underwear 5972 Thermo, GOTS
    Skladem (1 pcs)
    €28,40

    + more
    112964/80
    0922 12, Nightsuit, Powder Melange
    Action New Tip BF 20%
    €44,10 up to –31 %
    Smallstuff kids' merino wool bodysuit powder melange 0922-12 MERINO WOOL, NON-PILL
    Skladem (1 pcs)
    from €30,40
    + more
    110968/48
    6016 Melange Offwhite Extra 1
    Action
    €51,50 up to –31 %
    Mikk - line kids wool overall 6016 - Melange OffWhite MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    from €35,50
    + more
    117093/62
    6018 Melange Blue Nights Extra 1
    Action
    from €25,70 up to –31 %
    Mikk - line children's wool leggings 6018 - Melange Blue Nights MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    from €17,70
    + more
    117075/68
    0922 38, Nightsuit, Denim Melange
    Action New Tip BF 20%
    €45,30 up to –30 %
    Smallstuff kids' merino wool bodysuit denim melange 0922-38 100% merino wool, NON-PILL
    Skladem (1 pcs)
    from €31,30
    + more
    110962/56
    0922 40, Night Suit, Off White
    New Tip BF 20%
    Smallstuff kids' merino wool bodysuit off. white drop needle 0922-40 MERINO WOOL, NON-PILL
    Vyprodáno
    €44,10
    + more
    110956/56
    6015 Melange Blue Nights Extra 1
    Action
    €35,80 up to –31 %
    Mikk - line baby wool bodysuit 6015 - Melange Blue Nights MERINO WOOL
    Skladem (1 pcs)
    from €24,70
    + more
    117096/62
    100 662 06 0602 10s.JPG (2)
    Action SALE 40% OFF
    €44,20 up to –40 %
    MarMar children's long-sleeved wool t-shirt 100-662-06-0602 MERINO WOOL
    Skladem (1 pcs)
    from €26,10
    + more
    117918/86
    6018 Melange Offwhite Extra 1
    Action
    from €25,70 up to –31 %
    Mikk - line children's wool leggings 6018 - Melange OffWhite MERINO WOOL, BAMBOO
    Skladem (3 pcs)
    from €17,70
    + more
    117081/80
    6019 Melange Denver Extra 1
    Action
    from €36 up to –31 %
    Mikk-line children's wool long-sleeved t-shirt 6019 - Melange Denver MERINO WOOL
    Skladem (2 pcs)
    from €35,50

    + more
    117069/104
    1024x1024 4b6ddff6633a1d1c333eb1839153576c
    Action New
    €51,50 up to –31 %
    Mikk-line children's onesie made of wool and bamboo 6004 - Melange Denver MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    from €35,50
    + more
    118464/62
    6016 Melange Denver Extra 1
    Action
    €51,50 –31 %
    Mikk - line kids wool overall 6016 - Melange Denver MERINO WOOL, BAMBOO
    Skladem (2 pcs)
    €35,50
    + more
    117090/56
    MarMar children's long-sleeved wool t-shirt 100-662-06-0151 MERINO WOOL
    Action SALE 40% OFF
    €44,20 up to –40 %
    MarMar children's long-sleeved wool t-shirt 100-662-06-0151 MERINO WOOL
    Skladem (1 pcs)
    from €26,10
    + more
    117915/86
    6015 Melange Denver Extra 1
    Action
    €35,80 up to –31 %
    Mikk - line baby wool bodysuit 6015 - Melange Denver MERINO WOOL
    Skladem (1 pcs)
    from €24,70
    + more
    117099/62
    0902 40, Body LS, Off White
    Action Tip Bestseller BF 20%
    €29,60 up to –30 %
    Smallstuff children's merino wool bodysuit off. white drop needle 0902-40 MERINO WOOL, NON-PILL
    Skladem (1 pcs)
    from €20,50
    + more
    110695/56
    0902 55, Body LS, Navy
    Action Tip BF 20%
    €29,60 up to –30 %
    Smallstuff children's merino wool bodysuit navy drop needle 0902-55 MERINO WOOL, NON-PILL
    Skladem (2 pcs)
    from €20,50
    + more
    110692/56
    6016 Melange Blue Nights Extra 1
    Action
    €51,50 up to –31 %
    Mikk - line kids' wool overall 6016 - Melange Blue Nights MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    from €35,50
    + more
    117087/56
    6019 Melange Blue Nights Extra 1
    Action
    from €36 up to –31 %
    Mikk-line Kids' Wool long-sleeved t-shirt 6019 - Melange Blue Nights MERINO WOOL
    Skladem (1 pcs)
    from €24,90

    + more
    117066/92
    0922 55, Night Suit, Navy
    New Tip BF 20%
    Smallstuff kids' merino wool bodysuit navy drop needle 0922-55 MERINO WOOL, NON-PILL
    Vyprodáno
    €44,10
    + more
    110953/68
    Snímek obrazovky 2025 12 08 v 11.12.23
    Action SALE 40% OFF
    €36,60 –40 %
    MarMar baby wool bodysuit 100-662-04-0151 MERINO WOOL
    Skladem (1 pcs)
    €21,60

    Soft long-sleeved bodysuit from the collection MarMar Wool Pointelle – delicate pattern, snap fastening and material combining merino wool and viscose for comfort and...

    + more
    117858/56
    Snímek obrazovky 2025 10 28 v 16.18.14
    Action New SALE 40% OFF
    €36,60 –40 %
    MarMar baby wool bodysuit with details 101-661-04 Soft dove MERINO WOOL
    Skladem (1 pcs)
    €21,60

    Soft long-sleeved bodysuit from the collection MarMar Wool Pointelle – delicate pattern, snap fastening and material combining merino wool and viscose for comfort and...

    + more
    118512/56
    1024x1024 4ade938312381238c2af0ab906e43dc3
    Action New
    Mikk-line children's onesie in wool and bamboo 6004 - Sparrow MERINO WOOL, BAMBOO
    Dodání 2 - 5 dní
    €51,50
    + more
    118467/56
    MarMar baby wool bodysuit with details 100-661-04-0151 MERINO WOOL
    Action SALE 40% OFF
    €36,60 up to –40 %
    MarMar baby wool bodysuit with details 100-661-04-0151 MERINO WOOL
    Skladem (1 pcs)
    from €21,60

    Soft long-sleeved bodysuit from the collection MarMar Wool Pointelle – delicate pattern, snap fastening and material combining merino wool and viscose for comfort and...

    + more
    117900/62
    Návrh bez názvu 4
    Action SALE 40% OFF
    €44,20 up to –40 %
    MarMar children's long-sleeved wool t-shirt 253-662-30-4554 MERINO WOOL
    Skladem (1 pcs)
    from €26,10
    + more
    117864/122
    0912 55, Body LS, Navy
    Action Tip BF 20%
    €30,10 up to –30 %
    Smallstuff kids' merino wool leggings navy drop needle 0912-55 MERINO WOOL, NON-PILL
    Skladem (1 pcs)
    from €20,80
    + more
    110977/56
    1024x1024 58a47dc759d15bf40a6b30cb2a9d79df
    Action New
    Mikk-line children's t-shirt in wool and bamboo 6002 - Blue nights WOOL, BAMBOO
    Dodání 2 - 5 dní
    €41,20

    + more
    118473/56
    Návrh bez názvu 10
    Action SALE 40% OFF
    €36,60 up to –40 %
    MarMar baby wool bodysuit 253-662-20-4554 MERINO WOOL
    Skladem (2 pcs)
    from €21,60

    Soft long-sleeved bodysuit from the collection MarMar Wool Pointelle – delicate pattern, snap fastening and material combining merino wool and viscose for comfort and...

    + more
    117870/56
    0902 38, Body LS, Denim Melange
    Action Tip Bestseller BF 20%
    €29,60 up to –30 %
    Smallstuff children's merino wool bodysuit denim melange 0902-38 MERINO WOOL, NON-PILL
    Skladem (1 pcs)
    from €20,50
    + more
    110707/56
    0902 05, body ls, rose brown
    Action Tip BF 20%
    Smallstuff children's merino wool bodysuit rose brown drop needle 0902-05 MERINO WOOL, NON-PILL
    Vyprodáno
    €29,60
    + more
    110689/92
    1024x1024 e209b5ea49ed1aecb1c961cd14a3de8b
    Action New
    Mikk-line children's t-shirt in wool and bamboo 6002 - Melange Denver WOOL, BAMBOO
    Dodání 2 - 5 dní
    €41,20

    + more
    118470/56
    1024x1024 b01ee9e2b37babe9e7b332836dcd1e66
    Action New
    €51,50 up to –31 %
    Mikk-line children's onesie in wool and bamboo 6004 - Blue Nights MERINO WOOL, BAMBOO
    Skladem (1 pcs)
    from €35,50
    + more
    118461/62
    Návrh bez názvu 9
    Action SALE 40% OFF
    €36,60 –40 %
    MarMar baby wool bodysuit 100-662-04-0602 MERINO WOOL
    Skladem (2 pcs)
    €21,60

    Soft long-sleeved bodysuit from the collection MarMar Wool Pointelle – delicate pattern, snap fastening and material combining merino wool and viscose for comfort and...

    + more
    117861/56
    422968 7640 A
    Action Tip
    €44,20 up to –30 %
    Fixoni Baby Onesie 422968 - 7640 Wave
    Skladem (1 pcs)
    from €30,60
    + more
    117459/62
    6019 Melange Offwhite Extra 1
    Action
    from €36 up to –31 %
    Mikk-line children's wool long-sleeved t-shirt 6019 - Melange OffWhite MERINO WOOL
    Skladem (2 pcs)
    from €35,50

    + more
    117072/104
    330557 2105 A
    Action SALE 40% OFF
    €33,80 up to –40 %
    CeLaVi kids wool sleeveless bodysuit 330557 - 2105 100% wool, OEKO-TEX
    Skladem (1 pcs)
    from €20
    + more
    112802/50
    330522 3323 A
    Action SALE 50% OFF
    €46,10 up to –50 %
    CeLaVi children's wool leggings 330522 - 3323 100% wool
    Skladem (3 pcs)
    from €22,60
    + more
    106003/140
    330521 6092 A
    SALE 50% OFF
    CeLaVi children's long-sleeved wool t-shirt 330521 - 6092 100% wool
    Vyprodáno
    €54,60

    + more
    98223/110
    330521 7030 A
    Action SALE 50% OFF
    €54,60 up to –50 %
    CeLaVi children's long-sleeved wool t-shirt 330521 - 7030 100% wool
    Skladem (1 pcs)
    from €26,80

    + more
    98220/90
    740777 7280 A
    Action SALE 40% OFF
    €39,60 –40 %
    Color Kids kids' functional thermal underwear 740777-7280 Thermo
    Skladem (3 pcs)
    €23,40
    + more
    75870/92
    1024x1024 f2dfe46a00bac6049a8adc3851f48757
    Action New
    Mikk-line children's t-shirt in wool and bamboo 6002 - Sparrow WOOL, BAMBOO
    Dodání 2 - 5 dní
    €41,20

    + more
    118476/68
    1024x1024 26271e1f856f68c6d6d3086023e5333c
    Action New
    Mikk-line Kids' Wool Bamboo Bodysuit 6001 - Sparrow WOOL, BAMBOO
    Dodání 2 - 5 dní
    €41,20
    + more
    118458/56
    1024x1024 1297b1a322fde09e824a89aee93a0182
    Action New
    Mikk-line Kids' Wool Bamboo Bodysuit 6001 - Melange Denver WOOL, BAMBOO
    Dodání 2 - 5 dní
    €41,20
    + more
    118455/56

    Listing controls

    67 items total
    Top
    Boys' thermal underwear also helps maintain a stable body temperature, preventing potential colds.
    Thermal underwear is designed to be comfortable and not restrict movement.
    Boys' thermal underwear is an essential piece for the winter months and cold days, serving as a first layer.
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