Unrestricted comfort
for every single move
Super stretchy for non-stop play,
keeping your active little one
comfy all day
Check out our
new and improved sizes!
Select your child's size based on their height.
| Old | New |
|---|---|
| Based on Age | Based on Height |
| 3M, 6M, 18M, 24M 1-2Y, 2-3Y, 3-4Y, 5-6Y |
60, 70, 80, 90, 100, 110, 120, 130 |
All our sizes are now a bit roomier.
Choose true-to-size based on height
for the perfect fit.
Please be sure to check our updated size guide
and detailed measurements before ordering.
+2.4°C (36.3°F) warmer,
ultra-light yet
ultra-warm
ComfortWarm Thermal
Underwear Pants
Made with
parents in mind
-
Winter thermals can feel way too bulky for active kids. Any ideas?
-
Let’s source lightweight heat-tech materials that offer serious warmth without feeling heavy.
-
Defintely! It needs to be breathable so they stay cool while running around.
-
Snce it’s a daily winter staple, let's bring in a playful variety of colors and prints.
Thoughtfully designed
with parents in mind
Soft, snug-fitting
slim fit
Exceptional stretch
for effortless
movement
Lightweight & warm
heat-tech material
Cozy from the
very first slip-on,
ComfortWarm
Absorbs moisture to generate heat,
keeping temperatures perfectly
cozy all day
-
Warmth -
Moisture-Absorbing & Thermal -
Soft
+2.4°C (36.3°)F extra warmth felt instantly beneath the layers
Certified by international standards
to raise surface temperature by at least +2.4°C, delivering proven,
instant heat performance
Heat Generation
Moisture Absorption
#ERROR!
Fabric Surface Temp (°C)
Feel the difference
in next-level softness
Siro compact yarn* crafted for
maximum smoothness and
ultra-softness
- What is Siro Compact Yarn?
- It is a premium yarn crafted with tightly aligned fibers to cut down on fuzz and pilling, creating a super-smooth texture.
Unrestricted comfort
Stay dry and cozy, even through sweaty
winter play
Fast-absorbing comfort that locks in warmth and keeps active kids dry all day
Softly hugs the body
in a sleek, slim fit
Never feels bulky or stuffy, even under heavy winter clothes
Carefully crafted,
even in the
smallest details
-
Smart Care Label
Tears away easily
for smooth and
comfy wear. -
Pad Printing
Size and care
details printed
right on the fabric.
Demand only the best
for your child
-
Safety tested
domestically and
internationally -
All accessories
are
non-fluorescent
Go-to basic colors
and patterns for
effortless daily wear
Pair with the matching top for quick and
easy outfits
-
ComfortWarm
Underwear SetUltra-light yet warm
thermal loungewear
The Konny Way
We put 100% into
everything we make
From fabric development to optimizing fit, care instructions, and storage, we don't compromise when it comes to quality.
We do every single thing from a
parent's perspective.
Made for everyday reach
Our products are functional, aesthetic and effortless—so you naturally reach for them, again and again.
We grow with you
Everything we do is guided by your needs. We’re proud to help make everyday life a little easier. Konny stands with parents and caretakers everywhere.
Color
Charcoal
-
Black
-
Heather Grey Stripe
-
Mocha Stripe
-
Rose Pink Stripe
- Color most true to the actual product
Size
Standard Guide
| Size | Height | Weight | Age |
|---|---|---|---|
| 60 | 50-60 cm (19.7-23.6 in) |
4-6 kg (8.8-13.2 lb) |
0-3M |
| 70 | 60-70 cm (23.6-27.6 in) |
6-9 kg (13.2-19.8 lb) |
3-9M |
| 80 | 70-80 cm (27.6-31.5 in) |
9-11 kg (19.8-24.3 lb) |
9-18M |
| 90 | 80-90 cm (31.5-35.4 in) |
11-13 kg (24.3-28.7 lb) |
18-30M |
| 100 | 90-100 cm (35.4-39.4 in) |
13-16 kg (28.7–35.3 lb) |
30M-4Y |
| 110 | 100-110 cm (39.4-43.3 in) |
16-19 kg (35.3–41.9 lb) |
4-5Y |
| 120 | 110-120 cm (43.3-47.2 in) |
19-23kg (41.9-50.7 lb) |
5-6Y |
| 130 | 120-130 cm (47.2-51.2 in) |
23-27 kg (50.7-59.5 lb) |
6-7Y |
Actual Measurements
| Size(cm) | 80 | 90 | 100 | 110 | 120 | 130 |
|---|---|---|---|---|---|---|
| LengthA | 42/ 17 |
48/ 19 |
54/ 21 |
60.5/ 24 |
67/ 26 |
73.5/ 29 |
| Waist B | 19.6/ 8 |
20.8/ 8 |
22/ 9 |
23.2/ 9 |
24.4/ 10 |
25.6/ 10 |
| HipC | 23/ 9 |
24.5/ 10 |
26/ 10 |
27.5/ 11 |
29/ 11 |
30.5/ 12 |
| Bottom Opening D | 7/ 3 |
7.5/ 3 |
8/ 3 |
8.5/ 3 |
9/ 4 |
9.5/ 4 |
| Front Rise E | 17/ 7 |
17.5/ 7 |
18/ 7 |
19/ 7 |
20/ 8 |
21/ 8 |
- Actual product measurements
- A difference of 1-2cm can occur depending on how the product is measured, even within the same size.
- Make sure the logo goes in the back
Models' Sizes
-
Wearing 90
88cm/13.5kg
(34.6 in / 29.8 lb) -
Wearing 90
89cm/12.5kg
(35.0 in / 27.6 lb) -
Wearing 100
97cm/15kg
(38.2 in / 33.1 lb) -
Wearing 100
100cm/16kg
(39.4 in / 35.3 lb)
Care Instructions
Material:
64% Acrylic, 27% Rayon, 9% Spandex
Care Instructions
-
Machine wash cold
recommended -
Do not bleach -
Do not
machine dry -
Do not iron -
Do not dry clean
- Please avoid using a dryer as heat may cause color bleeding or fading.
Packaging & Shipping Information
In order to ensure you receive the highest quality product possible, we package all our orders with a Micro-Pak® PE sheet, a functional antibacterial and moisture-proof packing material that has passed U.S. and European safety standards.
ComfortWarm Thermal Underwear Pants
Clothing Size Guide
Free Shipping on orders $120+
$10 off on orders $150+
$20 off on orders $200+
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Check out our
new and improved sizes!
Select your child's size based on their height.
| Old | New |
|---|---|
| Based on Age | Based on Height |
| 3M, 6M, 18M, 24M 1-2Y, 2-3Y, 3-4Y, 5-6Y |
60, 70, 80, 90, 100, 110, 120, 130 |
All our sizes are now a bit roomier.
Choose true-to-size based on height
for the perfect fit.
Please be sure to check our updated size guide
and detailed measurements before ordering.
+2.4°C (36.3°F) warmer,
ultra-light yet
ultra-warm
ComfortWarm Thermal
Underwear Pants
Made with
parents in mind
-
Winter thermals can feel way too bulky for active kids. Any ideas?
-
Let’s source lightweight heat-tech materials that offer serious warmth without feeling heavy.
-
Defintely! It needs to be breathable so they stay cool while running around.
-
Snce it’s a daily winter staple, let's bring in a playful variety of colors and prints.
Thoughtfully designed
with parents in mind
Soft, snug-fitting
slim fit
Exceptional stretch
for effortless
movement
Lightweight & warm
heat-tech material
Cozy from the
very first slip-on,
ComfortWarm
Absorbs moisture to generate heat,
keeping temperatures perfectly
cozy all day
-
Warmth -
Moisture-Absorbing & Thermal -
Soft
+2.4°C (36.3°)F extra warmth felt instantly beneath the layers
Certified by international standards
to raise surface temperature by at least +2.4°C, delivering proven,
instant heat performance
Heat Generation
Moisture Absorption
#ERROR!
Fabric Surface Temp (°C)
Feel the difference
in next-level softness
Siro compact yarn* crafted for
maximum smoothness and
ultra-softness
- What is Siro Compact Yarn?
- It is a premium yarn crafted with tightly aligned fibers to cut down on fuzz and pilling, creating a super-smooth texture.
Unrestricted comfort
for every single move
Super stretchy for non-stop play,
keeping your active little one
comfy all day
Stay dry and cozy, even through sweaty
winter play
Fast-absorbing comfort that locks in warmth and keeps active kids dry all day
Softly hugs the body
in a sleek, slim fit
Never feels bulky or stuffy, even under heavy winter clothes
Carefully crafted,
even in the
smallest details
-
Smart Care Label
Tears away easily
for smooth and
comfy wear. -
Pad Printing
Size and care
details printed
right on the fabric.
Demand only the best
for your child
-
Safety tested
domestically and
internationally -
All accessories
are
non-fluorescent
Go-to basic colors
and patterns for
effortless daily wear
Pair with the matching top for quick and
easy outfits
-
ComfortWarm
Underwear SetUltra-light yet warm
thermal loungewear
The Konny Way
We put 100% into
everything we make
From fabric development to optimizing fit, care instructions, and storage, we don't compromise when it comes to quality.
We do every single thing from a
parent's perspective.
Made for everyday reach
Our products are functional, aesthetic and effortless—so you naturally reach for them, again and again.
We grow with you
Everything we do is guided by your needs. We’re proud to help make everyday life a little easier. Konny stands with parents and caretakers everywhere.
Color
Charcoal
-
Black
-
Heather Grey Stripe
-
Mocha Stripe
-
Rose Pink Stripe
- Color most true to the actual product
Size
Standard Guide
| Size | Height | Weight | Age |
|---|---|---|---|
| 60 | 50-60 cm (19.7-23.6 in) |
4-6 kg (8.8-13.2 lb) |
0-3M |
| 70 | 60-70 cm (23.6-27.6 in) |
6-9 kg (13.2-19.8 lb) |
3-9M |
| 80 | 70-80 cm (27.6-31.5 in) |
9-11 kg (19.8-24.3 lb) |
9-18M |
| 90 | 80-90 cm (31.5-35.4 in) |
11-13 kg (24.3-28.7 lb) |
18-30M |
| 100 | 90-100 cm (35.4-39.4 in) |
13-16 kg (28.7–35.3 lb) |
30M-4Y |
| 110 | 100-110 cm (39.4-43.3 in) |
16-19 kg (35.3–41.9 lb) |
4-5Y |
| 120 | 110-120 cm (43.3-47.2 in) |
19-23kg (41.9-50.7 lb) |
5-6Y |
| 130 | 120-130 cm (47.2-51.2 in) |
23-27 kg (50.7-59.5 lb) |
6-7Y |
Actual Measurements
| Size(cm) | 80 | 90 | 100 | 110 | 120 | 130 |
|---|---|---|---|---|---|---|
| LengthA | 42/ 17 |
48/ 19 |
54/ 21 |
60.5/ 24 |
67/ 26 |
73.5/ 29 |
| Waist B | 19.6/ 8 |
20.8/ 8 |
22/ 9 |
23.2/ 9 |
24.4/ 10 |
25.6/ 10 |
| HipC | 23/ 9 |
24.5/ 10 |
26/ 10 |
27.5/ 11 |
29/ 11 |
30.5/ 12 |
| Bottom Opening D | 7/ 3 |
7.5/ 3 |
8/ 3 |
8.5/ 3 |
9/ 4 |
9.5/ 4 |
| Front Rise E | 17/ 7 |
17.5/ 7 |
18/ 7 |
19/ 7 |
20/ 8 |
21/ 8 |
- Actual product measurements
- A difference of 1-2cm can occur depending on how the product is measured, even within the same size.
- Make sure the logo goes in the back
Models' Sizes
-
Wearing 90
88cm/13.5kg
(34.6 in / 29.8 lb) -
Wearing 90
89cm/12.5kg
(35.0 in / 27.6 lb) -
Wearing 100
97cm/15kg
(38.2 in / 33.1 lb) -
Wearing 100
100cm/16kg
(39.4 in / 35.3 lb)
Care Instructions
Material:
64% Acrylic, 27% Rayon, 9% Spandex
Care Instructions
-
Machine wash cold
recommended -
Do not bleach -
Do not
machine dry -
Do not iron -
Do not dry clean
- Please avoid using a dryer as heat may cause color bleeding or fading.
Packaging & Shipping Information
In order to ensure you receive the highest quality product possible, we package all our orders with a Micro-Pak® PE sheet, a functional antibacterial and moisture-proof packing material that has passed U.S. and European safety standards.