Reima Base Layer Set: Sizing and Care Tips
By The Natural Baby Company | Published: 2026-10-28
Category: Tips & Care
Learn how to get the right fit for your child's Reima merino wool base layer set and keep it soft, warm, and durable with simple care steps.
Quick Answer
To get the best fit and longest life from the Reima Kids' Merino Wool & Lyocell Base Layer Set, choose a snug but not tight size and wash it on a gentle wool cycle with a mild detergent.
Why Fit and Care Matter for Merino Wool Base Layers
Merino wool is naturally temperature-regulating, breathable, and resists odors, but it needs specific handling to keep its softness and shape. The Reima base layer set combines merino wool on the outside for warmth with lyocell on the inside for itch-free comfort, so improper care can ruin both benefits. A poor fit—either too loose or too tight—reduces the thermal efficiency and can cause discomfort during active play.
Diagnosis: Common Sizing and Care Problems
- Symptom: The base layer set feels too tight or too loose after a few wears.
- Likely Cause: Merino wool can shrink slightly if washed in hot water or dried with high heat. The lyocell inner layer may also relax or pill if over-washed. Always check the care label and wash in cold water.
- Corrective Action: To fix a too-tight fit, gently stretch the damp garment back to shape while laying flat to dry. For a too-loose fit, wash in warm water (not hot) on a gentle cycle and dry flat—this may help it regain some snugness. If the problem persists, consider sizing up or down based on your child's growth. If the set is still uncomfortable after one careful wash, it may be better to exchange for a different size.
- Stop or Choose Another Option: If you have already tried a different size and the fit is still wrong, or if your child has sensitive skin that reacts to wool even with the lyocell lining, consider a 100% lyocell or cotton base layer instead. The Reima set is designed for cold weather and active play; it may not suit children who prefer a very loose fit or have wool allergies.
Product Facts
- Reima - Kids' Merino Wool & Lyocell Base Layer Set, Taitoa, Grey Pink: Very soft base-layer with lyocell for softness on the inside and merino wool for warmth on the outside. The dual-layer design means you should wash it gently to preserve the lyocell's softness and the wool's insulating properties.

Reima - Kids' Merino Wool & Lyocell Base Layer Set, Taitoa, Grey Pink
