upandfast Zipper Baby Zipper Swimwear with Snap Bottom and UPF 50+ Sun Protection (with hat)
Product description
Quick overview
If you’re buying a toddler or baby swimsuit mainly for days by the water, this upandfast one-piece is built around two practical ideas: easier nappy changes and more sun coverage. It’s a zip-front (or back on the upper body) design with snap buttons on the bottom, so you don’t necessarily have to take the whole swimsuit off just to change a nappy.
On paper, it also aims at proper sun protection. The fabric is rated UPF 50+ and is described as blocking 97.5% of UVA + UVB rays. It covers the upper body and goes down above the knees, which tends to be what many parents look for when they want less skin on show.
One potential snag: the listing doesn’t spell out things like swim suitability for long sessions, chlorine resistance, or exact sizing guidance here. So it’s worth checking the product details on the page before you commit—especially if your child is between sizes.
What stands out in everyday use

The headline feature is the “quick change” approach. With five metal buttons on the bottom plus a zipper on the upper body, changing the nappy becomes less of a full-dress/undress event. In real life, that means fewer layers getting soaked and less fuss when you’re trying to manage time at the beach or by a pool.
There’s also a comfort angle. The fabric blend is listed as 80% nylon and 20% spandex, described as quick-drying, lightweight, soft and skin-friendly. For parents, that usually translates to less cling after swimming and a more comfortable feel against skin.
And it’s not just a swimsuit. The set includes a cute sun hat, designed to cover the face and neck. That’s one less item to match later—although you’ll still want to check that the hat style and fit suit your child.
Sun protection, explained simply


This suit is marketed as an infant sun protective swimsuit with UPF 50+ fabric. UPF 50+ generally signals strong UV protection, and the brand description adds that it blocks 97.5% of UVA + UVB sun rays.

For typical outdoor water days—beach, lake, or a swim pool—this kind of coverage is useful if you’re trying to reduce direct sun exposure without relying only on sunscreen.
Worth noting: no swimsuit can replace sunscreen and shade, but the more coverage you have on-board, the easier it is to keep sun exposure under control.
Fabric and design notes (including possible limitations)
The design is a toddler one-piece with an elasticated round neck and long sleeves. Coverage is stated for the upper body and above the knees.
What you can reasonably expect for comfort: the nylon/spandex mix is meant to be soft and flexible, while the quick-drying claim should help after getting out of the water.

Where you might need to think twice: the “zipper on the front or back of the upper body” phrasing suggests there could be a positioning difference depending on the specific version. It’s not a deal-breaker, but if you have a strong preference (for example, for how it lies against the body when worn), it’s worth checking the photos and the exact variant.
Best use cases and who it’s for
This makes the most sense if you want a practical baby swimsuit that’s geared for frequent nappy changes and daily sun protection.


It’s particularly appealing for parents who: - spend long stretches outdoors near water - want longer sleeves and extra coverage to reduce exposed skin - prefer a one-piece that’s quicker to adjust during routine changes
It may not be the best match if you’re after a very minimal swimsuit style, or if you’d rather choose separates (rash guard + swim bottoms) instead of a full one-piece.

The essentials (tech at a glance)
The suit is described as: - UPF 50+ sun protection fabric - UPF claim: blocks 97.5% of UVA + UVB rays - Material: 80% nylon, 20% spandex - Features: long sleeves, elasticated round neck, coverage above the knees - Change design: front or back zipper on the upper body, plus five metal buttons on the bottom - Comes with: a sun hat
If your main focus is UV protection and day-to-day practicality, these are the specs that matter most.
Mini FAQ
How does the “quick change” work?

The design includes a zipper on the upper body and five metal buttons on the bottom, so you can change your baby’s nappy without fully removing the whole sunsuit.
Does it come with a hat?


Yes. The listing says it includes a sun hat designed to cover the face and neck.
Is the UPF 50+ claim strong?
The fabric is described as UPF 50+ and rated to block 97.5% of UVA + UVB rays, aimed at maximum UV protection.

Where is it suitable to wear?
It’s described as great for the beach, lake, or swim pool.
Is it comfortable for babies?
The fabric is listed as soft, skin-friendly, lightweight, and quick-drying, with long sleeves and a comfortable round neck.
Should you buy it?
It’s a solid pick if you prioritise sun protection with extra coverage and you want a swimsuit that makes nappy changes less of a hassle, especially on busy outdoor water days.
You may want to skip it if you need very specific construction details beyond what’s shown (for example, exact zipper placement in your preferred direction), or if you prefer a different style approach like separate pieces.
In short: if your goal is practical, covered-up swimwear with an easier change mechanism, this one-piece with hat ticks the right boxes on paper. Just double-check the variant details and sizing info on the product page before ordering.
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