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100, Warm Loose-Fit Gym Pants, Boys'

Sale price: $8.00 Regular price: $12.99

Great basic pants - an absolute must-have!! Loose-cut pants that are fleecy inside with pockets on either side. Drawstring to adjust the waist if necessary

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Size Guide

This product runs small

Sale price: $8.00 Regular price: $12.99

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8578483

Product Features

A photo of the 100, Warm Loose-Fit Gym Pants, Boys' in use

100, Warm Loose-Fit Gym Pants, Boys' | These pants were designed for keeping you warm before, during, and after low-intensity gym activities.

Great basic pants - an absolute must-have!! Loose-cut pants that are fleecy inside with pockets on either side. Drawstring to adjust the waist if necessary

Moisture wicking

Fabric made with cotton that holds dampness and dries slowly


Brushed jersey pants to keep you warm


Naturally stretchy fabric for easy dressing


A fleecy fabric for extra softness

Product Lifestyle Image Gallery

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100, Warm Loose-Fit Gym Pants, Boys',black

Product Customer Reviews

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625 Reviews
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100, Warm Loose-Fit Gym Pants, Boys',black
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Chemical Smell

Bought for my 12 year old daughter (as the girls range doesn't allow for her height). Good price, lovely and soft even after washing, tie waist to allow for being slim around the middle. In fact, so good I was going to order a few more pairs as my daughter has sensory sensitivities and it is rare to find an item of clothing that is comfortable for her. Unfortunately, after a few washes, the trousers have developed a very strong, toxic/ chemical type smell (not shifted by re washing, fabric refresh spray, in wash scent boosters, hanging up outside or anything else I can think of trying) meaning they are now unwearable. Really disappointing as they were so good in every other way.

Good Value Bottoms

I bought these for my son for school and they are just what I wanted. Good sizing, excellent quality, lovely and soft both inside and out, washes up lovely and even though it says not to tumble dry I have and to my knowledge they don’t seem to have shrunk. Would definitely recommend, in fact I’m going to buy another couple of pairs for him to grow in to.

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Cool purchase


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Good value

Wash well, fit well, good price

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Fantastic joggers

Really comfy, soft joggers, my son loves them and fantastic value for money!

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Good Quality

Very soft and smooth and keeps you warm in winter. 100% recommend.

nice & soft

Very very comfortable

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Very Good

Very good stuff

Great Product

Go for it blindly

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Не качествен плат

Стана на топчета след първото пране и избеля цвета

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Благодарим Ви, че отделихте от времето си, за да ни оставите Вашата обратна връзка. Нашият екип следи всички канали, за да можем да подобряваме услугите си всеки ден. Ще предадем на нашите екипи всичко, което ни споделихте.

Спортни поздрави,

Екипът на Декатлон.

Chlapecké tepláky

příjemné, pohodlné

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Hezké tepláky, příjemné, materiál kvalitní. Jen velikost 146 je akorát pro dítě výšky 140. Kupovali jsme větší, aby déle vydržely, ale jsou tak akorát.

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Alles perfekt wie immer

Alles perfekt wie immer

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Sehr gut

Mein Sohn zieht sehr gerne an.

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Super Preis-Leistungsverhältnis

Alles gut.

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 42% Cotton
  • 58% Polyester cationic


  • 4% Spandex
  • 38% Polyester cationic
  • 58% Cotton


  • 100% Cotton

Sports clothing designed for kids and teens aged 6 to 14 5'8" for boys and 5'5" for girls

Our range has been designed for kids' indoor sports or PE classes at school. The World Health Organization (WHO) recommends that kids devote at least 60 minutes each day to physical activity. The role of sport and its benefits to the mental and physical development and well-being in kids and adolescents have already been well proven: development of motor skills and agility, self-confidence, and social inclusion.

What do we mean by educational gym and sports activities?

PE lessons and sports activities allow kids to unleash their energy and explore all the physical possibilities available to them: jumping, balancing, stringing together a series of movements, and doing tricks. While mostly practiced at school during PE, it can also be practiced in clubs or recreationally.

The joys of sport:

Sport offers numerous benefits for both kids and teens, from moving around to having fun and interacting with friends, all while learning how to get along with others!

The domyos product design process

Our design teams work toward a single objective: providing a perfect balance of perspiration wicking, warmth, and stretchiness based on the needs of our young sports users. Kids will be able to choose their full gym outfit: T-shirt, tank top, leggings, pants, shorts, sweatshirt, or jacket.

Find the perfect size for a kid or teen

Our sizing for kids aged 6-14 is evolving! We offer products by indicating the age range and height of kids. We know that there are vast differences in height for kids of the same age. Feel free to measure kids to see which model will fit them We also offer an additional size for ages 14-15: boys up to 5'8" and girls up to 5'5"

Did you know?

Our products are regularly tested and we make changes based on customer feedback.



Product testing

These tests are regularly performed by an independent laboratory and allow us to ensure that our quality standards are always upheld. This garment has undergone washing and drying tests to ensure that it retains its shape and color.

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual