JustSun Men’s Waterproof Quick-Dry Swim Shorts with Mesh Lining
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Product description
Quick overview
These JustSun men’s swim shorts are built around a practical idea: you want swim-style comfort, but you also need pockets that can actually carry everyday essentials without feeling flimsy or sagging. On paper, they tick several boxes at once thanks to quick-drying nylon, waterproofing, an elastic drawstring waist, and a mesh inner lining for a more comfortable feel when you’re in and out of the water.
The waterproof/quick-dry combination and the pocket design make them especially appealing for people who don’t just swim for an hour, but move around—beach walks, surfing sessions, or even casual wear while on holiday. That said, “waterproof” can mean different things across swimwear, so it’s worth keeping expectations grounded if you’re after something for heavy-rain protection or long periods fully submerged.
Key features that matter in real use

The standout day-to-day feature here is storage. The shorts come with two side pockets, plus a flap back pocket described as having a large space for your phone, wallet and similar items. The side pockets are also described as able to bear the weight of a phone without sagging. That’s exactly the sort of detail that can make the difference between shorts you tolerate and shorts you actually reach for.
Next is the construction for comfort and movement. The waist is adjustable using an elastic band with a drawstring, and the description notes around 5–8 cm stretch, which should help if you like a secure fit without feeling restricted. The mesh inner lining is meant to keep things comfortable through the day, and the fabric is described as lightweight nylon, which usually translates to less cling when you’ve been in the water.
Finally, the fabric is positioned for both water and speed: waterproof and quick-drying. If you’ve ever had to stomp around in heavy, damp swim shorts after a swim, this is aimed at reducing that awkward window.
What’s the point of the mesh lining?



On this kind of swim short, the mesh lining isn’t just for looks. In practice, it can help reduce the “sticking” feel many people get when wet fabric rubs against skin. The description also calls out softness and all-day comfort, which suggests these aren’t only for getting wet—they’re designed to be worn through the in-between moments too.
If your main priority is comfort while walking on a hot day after a dip, the lining is one of the reasons these shorts are more than just a basic beach pair. Still, if you prefer no lining at all for your personal feel, you may find that this one sits differently than very minimal swim styles.
Usage tips and best use cases
These shorts are clearly written for an active lifestyle. The description explicitly points to swimming, surfing, walking, running, and casual/holiday beach activities.

A simple example of how they work in a typical day: you head to the beach, go for a swim, then take a longer walk along the shore. Thanks to quick-drying nylon, you’re less likely to stay damp for hours. The waterproofing is there to help with water contact, while the side pockets are designed to hold something like a mobile or wallet without them dragging the fabric out of shape.
If you’re the type of buyer who wants one pair for “most of the day”, rather than a strict swim-only option, this is likely to make more sense. It may be less compelling if you mainly want lightweight loungers for the deck where pockets aren’t a factor.
Tech specs (what we know from the description)
- Type: Men’s swim shorts
- Fabric: lightweight nylon
- Lining: mesh inner lining
- Waist: adjustable elastic band with drawstring
- Stretch: described as 5–8 cm stretch
- Pockets: 2 side pockets and 1 flap back pocket
- Storage intent: large space for phone and wallet mentioned
- Water performance: waterproof and quick-drying described



Note: exact dimensions, waterproof rating, and closure details aren’t provided here, so you’ll want to rely on the size chart before ordering.
Buying verdict
It’s a good fit if you want men’s swim shorts with practical, durable pockets for carrying a phone/wallet, plus a quick-drying nylon build and an adjustable drawstring waist. Worth considering if your beach day involves more than just swimming—think walking, casual time outside, or getting changed and heading back out.
It may not suit you if you’re expecting a specific waterproof certification or if you’re very sensitive to any lining feel. Also, keep expectations realistic: without concrete details, “waterproof” here is best viewed as water-resistant performance for swimwear use rather than full protection for every situation.

Before you buy, check the size chart (the brand asks you to do this) and confirm you’re comfortable with the pocket layout—especially if you usually carry a heavier phone and want the fit to stay exactly where you put it.
Mini FAQ
Do these shorts have pockets for a phone?
Yes. They’re described as having two side pockets and a flap back pocket, with a large space intended for a phone and wallet.



Are they quick-drying?
The fabric is described as quick-drying, alongside waterproof performance.
Is the waist adjustable?
Yes. The description states an elastic band with a drawstring and notes it can stretch by around 5–8 cm.
Do they include an inner lining?
Yes, there’s a mesh inner lining described as soft and comfortable.
What should I check before ordering?
The size chart is highlighted as something you should read before placing your order.
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