MEC Lightweight Baselayer Long Johns - Children 5053-911

MEC Lightweight Baselayer Long Johns - Children

Size Guide

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Show Description

Baselayers that are so versatile, they go under anything in the winter, then work on their own in the summer. Wicking fabric dries really fast, and it’s equipped with Polygiene antimicrobial technology that keeps it smelling fresher for longer. UPF 40 sun protection means they’re good to go when the sun comes out.

  • Made of moisture-wicking polyester and spandex to keep little ones dry and comfortable.
  • Flat seams don't chafe or add bulk, so they're good for layering.
  • Classic pull-on design with an elastic waist.
  • Gussetted crotch lets your child move freely.
  • Polygiene® antimicrobial treatment is great for days on the trail or travelling.
  • Fabric has a UPF 40 rating.
  • Interior name label so it won't get lost.
  • Coordinates with MEC Lightweight Baselayer Top.


Bluesign® Approved Material

Tech specs

Show Tech specs
Ideal for
  • Camping and hiking
  • Snowsports
  • Snow and ice climbing
Type Base layer
Fabric weight

Measured in grams per square metre (gsm). The larger the number, the heavier and thicker the garment.

Fabric content
  • 92% polyester
  • 8% spandex
Additional feature(s) Antimicrobial treatment
UPF rating

The Ultraviolet Protection Factor rating indicates how effective a fabric is at blocking out solar ultraviolet radiation.

40-50+ (Blocks ~97.5% of UVA/UVB)
Product sustainability Bluesign® Approved Material
Made in El Salvador