Magnetic Long Sleeve T-shirt: Sizing and Layering Basics
By Magnetic Me | More Time For the Moments That Truly Matter | Published: 2026-11-01
Category: How-to Guides
Learn how to size a magnetic long sleeve t-shirt for babies and toddlers, layer it for changing weather, and care for the magnets so dressing stays easy.
Quick answer
Choose the size that matches your child’s current height and weight, not the next size up, because the magnetic closures work best when the shirt fits close to the body. Layer a long sleeve tee under a lightweight jacket or over a short-sleeve bodysuit, and always close the magnets before washing.
Why fit matters more with magnetic closures
Magnetic closures rely on the two sides of the shirt meeting in the right place. If the tee is too big, the magnets can shift and the neckline may gap; if it is too small, the fabric pulls and the magnets may pop open. A close-but-comfortable fit keeps the closure aligned and makes over-the-head dressing genuinely quick.
The Magnetic Long Sleeve T-shirt is available in sizes from 18–24 months, so sizing is straightforward for that range. For children outside that range, check the size chart on the product page rather than guessing from age alone.
Layering without bulk
A long sleeve tee is a base layer, not a coat. Add a vest or lightweight jacket for extra warmth, and avoid thick sweaters directly over the magnets because the extra fabric can make the closure harder to line up. If you need more warmth, choose a thin midlayer that does not bunch at the neckline.
For babies, a short-sleeve bodysuit underneath gives diaper coverage without adding bulk at the sleeves. For toddlers, the tee works on its own or under a zip-up hoodie.
Care that protects the magnets
Close all magnetic closures before washing. This keeps the magnets paired and prevents them from attracting other metal items in the drum. Wash on a gentle cycle with like colors, and avoid high heat in the dryer because heat can stress the fabric and the closure housing over time.
Check the magnets after each wash by running your fingers along the closure line. If a magnet feels loose or the fabric around it is worn, stop using the shirt until you have inspected it.
Step-by-step: size, layer, and care for your magnetic tee
- Measure before you choose a size: Use your child’s current height and weight against the size chart, and pick the size that matches now rather than buying ahead. Common mistake: sizing up for growth, which can make the magnets misalign and the neckline gap. If your child is between sizes, choose the smaller size for a closer fit.
- Test the fit at the neckline and sleeves: Once the shirt is on, check that the neckline lies flat and the sleeves reach the wrist without covering the hands. The magnets should sit closed without pulling. Common mistake: ignoring a gaping neckline because the body fits. A gaping neckline means the size is too large for reliable magnetic closure.
- Layer thin over thick: Put the long sleeve tee on first as a base layer, then add a lightweight vest or jacket. Avoid thick sweaters directly over the magnets. Common mistake: layering a bulky top over the tee, which can push the magnets apart. If you need more warmth, add a thin midlayer rather than a heavy one.
- Close magnets before washing: Fasten all closures before the shirt goes in the machine, and wash on a gentle cycle. Common mistake: leaving the magnets open, which lets them attract other metal items or snag other clothes. Check the closure line after every wash for loose magnets.
- Air-dry or tumble low: Skip high heat. Air-drying or a low tumble setting protects the fabric and the closure housing. Common mistake: using a hot dryer cycle, which can shorten the life of the magnets. When in doubt, air-dry.
Product facts
- Magnetic Long Sleeve T-shirt: Magnetic closures allow quick, over-the-head dressing without fuss. This is the main reason to choose this tee for a child who resists traditional buttons or snaps.

Magnetic Long Sleeve T-shirt - Magnetic Long Sleeve T-shirt: Soft, comfortable fabric is designed for all-day wear. A tee that stays comfortable makes it a reliable base layer for daycare, travel, or play.
- Magnetic Long Sleeve T-shirt: Long sleeves provide extra coverage. That coverage makes the shirt a useful single layer on mild days and a base layer when temperatures drop.
- Magnetic Long Sleeve T-shirt: Available in sizes from 18–24 months. Sizing is limited to that range, so check the chart before ordering for a child outside it.
