MEC Midweight Underwear Long Johns - Children
Free store pickup
Order online, get it at your local MEC. It couldn’t be easier.
Rocksolid Guarantee
Shop with confidence. If it’s not working out, you can return it (consumables, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.
It lasts longer than 30 days, but not forever. We'll be fair about it. We're all members here.
Price match guarantee
Found a better deal in Canada? Up to 30 days after purchase – we’ll match it.
If you see a lower price for this exact item advertised online, in print or in a store, give us a call at 1 (888) 847-0770.
If it’s identical, brand-new, in stock, and sold and shipped by a Canadian-based retailer, we’ll match that price.
Cannot be shipped to USA.
Description
Kids need to be warm to play happily in cool weather – they'll play longer wearing this breathable, insulating baselayer. They have a unique mesh structure on the reverse of the fabric that moves moisture to the outside for super efficient moisture management.
- Made of 100% recycled polyester.
- Super stretchy for added comfort.
- Flat seams don't chafe or add bulk, so they're good for layering.
- Classic pull-on design with an elastic waist.
- Gussetted crotch allows ease of movement.
- Heat transferred label is comfortable against skin.
- Coordinates with MEC Midweight Underwear Crew.
Fit guide
Technical garments, designed for specific activities have features that aren’t always adaptable to general use. For example, cycling clothing is longer in the back and arms. Activity aside, the fit of MEC clothing falls into these categories:
Tight, with no room to spare.
Very close fit, with a bit of room.
Generous, but not oversized.
Oversized with lots of room for layers.
All MEC men’s and boy’s pants are regular rise.
Sustainability
Tech specs
Show
Tech specs
| Weight | 55g (Child 3) |
|---|---|
| Ideal for |
|
| Type | Base layer |
|
Fabric weight
Measured in grams per square metre (gsm). The larger the number, the heavier and thicker the garment. |
148gsm |
| Fabric content | 100% recycled polyester |
| Product sustainability |
|
| Made in | China |
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chest
(cm)
(in.)
Chest
(cm)
(in.)
Measure fullest circumference, keeping tape up under arms and across shoulder blades. |
53.25 21 | 56 22 | 58.5 23 | 61 24 | 63.5 25 | 66 26 | 67.5 26½ | 71 28 | 76 30 | 81.5 32 | 86.5 34 |
|
Waist
(cm)
(in.)
Waist
(cm)
(in.)
Measure at the narrowest circumference of your waist. |
52 20½ | 53.25 21 | 54.5 21½ | 56 22 | 57.25 22½ | 58.5 23 | 59.5 23½ | 62 24½ | 65 25½ | 67.5 26½ | 70 27½ |
|
Hips
(cm)
(in.)
Hips
(cm)
(in.)
Stand with feet together and measure at fullest circumference. |
53.25 21 | 56 22 | 58.5 23 | 61 24 | 63.5 25 | 66 26 | 67.5 26½ | 71 28 | 76 30 | 81.5 32 | 86.5 34 |
|
Arm length
(cm)
(in.)
Arm length
(cm)
(in.)
Bend elbow gently, then measure from centre of back of neck out to point of shoulder, down to back of elbow, and forward to wrist. |
39.25 15½ | 43.25 17 | 47 18½ | 50.75 20 | 54.5 21½ | 58.5 23 | 59.5 23½ | 65 25½ | 70 27½ | 73.5 29 | 77.5 30½ |
|
Inseam
(cm)
(in.)
Inseam
(cm)
(in.)
Measure inner leg from crotch to just below the ankle bone. |
34.25 13½ | 38 15 | 42 16½ | 45.75 18 | 49.5 19½ | 53.25 21 | 56 22 | 62 24½ | 68.5 27 | 72.5 28½ | 77.5 30½ |
|
Height
(cm)
(in.)
Height
(cm)
(in.)
Stand with back straight; measure from highest point on head to floor. |
86.25 34 | 94 37 | 101.5 40 | 109.25 43 | 116.75 46 | 124.5 49 | 127 50 | 54 | 58 | 61 | 64 |
| Weight (kg) (lb.) Weight (kg) (lb.) | 13.25 29 | 15.5 34 | 17.25 38 | 20 44 | 22.25 49 | 24.5 54 | 27 59 | 33 73 | 39.45 87 | 45.35 100 | 52.15 115 |
- Chest
- Measure fullest circumference, keeping tape up under arms and across shoulder blades.
- Waist
- Measure at the narrowest circumference of your waist.
- Hips
- Stand with feet together and measure at fullest circumference.
- Arm length
- Bend elbow gently, then measure from centre of back of neck out to point of shoulder, down to back of elbow, and forward to wrist.
- Inseam
- Measure inner leg from crotch to just below the ankle bone.
- Height
- Stand with back straight; measure from highest point on head to floor.
-
Body Fit
Tight, with no room to spare.
-
Slim Fit
Very close fit, with a bit of room.
-
Regular Fit
Generous, but not oversized.
-
Relaxed Fit
Oversized with lots of room for layers.