How to Choose a Baby Swimsuit with Sun Protection
By Wilson and Frenchy | Published: 2026-10-31
Category: Buying Guides
Learn how to pick a baby swimsuit with UPF 50+ sun protection. This guide covers key features like long sleeves, recycled materials, and easy dressing for stress-free beach days.
Quick answer
Look for a baby swimsuit with UPF 50+ fabric, long sleeves, and a comfortable fit that allows easy diaper changes. The Wilson and Frenchy Rashie Swim Set checks all these boxes with recycled polyester and a zipper back.
Why UPF 50+ matters for baby skin
Baby skin is thinner and more sensitive to UV rays than adult skin. A swimsuit with UPF 50+ blocks 98% of UVA and UVB radiation, offering reliable sun protection even during extended water play. This is especially important for babies under 12 months, who should avoid direct sun exposure as much as possible.
Long sleeves vs. short sleeves: what works best
Long-sleeve rashie tops provide more coverage and reduce the need for reapplying sunscreen on arms. They also help prevent sunburn on shoulders and upper arms, which are common burn spots. The trade-off is that long sleeves can feel warmer on hot days, but breathable fabrics like recycled polyester mitigate this.
Eco-friendly materials: recycled polyester and organic options
Many parents now prioritize sustainable swimwear. Recycled polyester swimsuits are durable, quick-drying, and help reduce plastic waste. While organic cotton is softer, it offers less UV protection and dries slower. For water activities, recycled polyester is the better choice for both sun safety and environmental impact.
Decision rules for choosing a baby swimsuit
- Check the UPF rating: Look for UPF 50+ as a minimum. This blocks at least 98% of UV rays. Avoid swimsuits without a stated UPF rating.
- Choose long sleeves for more coverage: Long-sleeve rashie tops protect arms and shoulders, reducing the need for frequent sunscreen reapplication. Ideal for babies who spend extended time in the water. If your baby overheats easily, a short-sleeve rashie with a wide-brim hat is a cooler alternative.
- Prioritize easy dressing features: A back zipper or snap crotch makes diaper changes simpler. Avoid swimsuits that require pulling over the head when wet.
- Select quick-dry, recycled materials: Recycled polyester dries fast and holds its shape. It's also more eco-friendly than virgin synthetic fabrics. Avoid cotton for water play as it stays wet and heavy.
Product facts
- Rashie Swim Set: The Rashie Swim Set is made from recycled polyester and has a UPF 50+ rating. This means your baby gets effective sun protection from a sustainable material that dries quickly and stays comfortable during pool or beach play.
Rashie Swim Set - Rashie Swim Set: It includes a long-sleeve rashie top and adjustable-waist shorts with a zipper opening on the back for easy dressing. The long sleeves maximize coverage, while the back zipper makes diaper changes quick and hassle-free—no need to pull a wet suit over your baby's head.
Fit guidance
Best for
- Babies who need maximum sun protection during pool or beach outings
- Parents who want a sustainable, easy-to-wear swimsuit with quick diaper changes
Not for
- Very hot climates where a short-sleeve rashie might be more comfortable
- Babies who prefer loose-fitting swimwear without adjustable waistbands
