How to Choose the Best Kids Wetsuit – Buyer’s Guide | Le Grom
Shopping for a kids wetsuit can be overwhelming. Most parents end up buying 2–3 suits before finding one that actually works. This guide breaks down exactly what to look for so you can skip the trial and error and get it right the first time.
What to Look for in a Kids Wetsuit
Not all wetsuits are created equal. Here are the 6 things that actually matter:
- 3mm+ Neoprene Thickness — Anything thinner than 3mm won’t keep a toddler warm in water below 68°F. Budget suits use 2mm or less.
- Toddler-Specific Proportions — Kids aren’t small adults. Look for suits designed around actual toddler body measurements, not scaled-down adult patterns.
- Flatlock Stitching — Prevents the raised seams that cause chafing and rashes on sensitive skin. If you can feel the seams on the inside, skip it.
- Back Zip with Pull Tab — The fastest way to get a squirmy toddler in and out. Front zips look cool but are a nightmare with little kids.
- Reinforced Knees — Kids crawl, slide, and drag themselves across sand and rocks. Without reinforced knees, the suit won’t last the season.
- UPF 50+ Sun Protection — A wetsuit should protect from UV as well as cold. Look for UPF 50+ rated neoprene.
Why The Grom Fullsuit Checks Every Box
We designed every detail around what parents actually need.
3mm Premium Neoprene
Keeps kids warm for over an hour in water as cold as 58°F. Soft, flexible, and doesn’t restrict movement.
Easy Back Zip
Long pull tab lets parents zip up in seconds. No fighting, no tears, no wrestling a toddler into a tight front-zip.
UPF 50+ Protection
Full-body coverage blocks 98% of UV rays. One less thing to worry about during long beach days.
How to Get the Right Fit
A wetsuit should fit like a second skin — snug but not restrictive. Too loose and cold water floods in. Too tight and your kid won’t want to wear it.
Quick Sizing Tips:
Go by Weight + Height
Clothing size alone isn’t reliable. Our size chart uses weight and height ranges for a precise fit.
Between Sizes? Size Up
Neoprene stretches slightly with use. A slightly snug new suit will break in within 2–3 wears.
Check Wrists & Ankles
Gaps at the wrists and ankles let cold water flush through the suit. These should be snug.
When Does Your Kid Need a Wetsuit?
If the water is below 72°F, your kid will get cold within 15–20 minutes without a wetsuit. That covers most of California, the East Coast, Pacific Northwest, and even parts of Florida and Hawaii for much of the year.
A good fullsuit extends your beach season by months. Kids who used to last 20 minutes can play in the water for over an hour. That’s the difference between a fun beach day and a frustrating one.
The Grom Fullsuit is rated for water temperatures from 58–72°F — perfect for spring, summer, and fall sessions in most U.S. coastal waters.
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