Category: Beach Hacks & Safety
By Agnes · Handy Beach Goods · Last updated September 2026
30-Second Summary: Hiding your phone and keys under a beach towel doesn't stop anyone. If you spend your swim watching your stuff instead of enjoying the water, there's a better answer. The Handy 3-in-1 is a waterproof dry bag, a high-visibility swim buoy, and a beach pillow in one — so your valuables come in the water with you instead of sitting on the sand.
Think about your last trip to the beach. You set up your Handy Beach Umbrella, laid out your blanket, and finally walked down to the water to cool off.
But once you got in the ocean, could you actually relax?
If you're like most people, you spent half the time doing the "Towel Stare" — glancing back at the sand every thirty seconds to check nobody was walking off with your phone, keys, and wallet.
Let's be honest: hiding a $1,200 phone inside a sneaker or rolling it into a damp towel isn't fooling anybody. On a crowded peak-season beach (see The Crowded Beach Survival Guide), the anxiety of leaving your valuables unattended is the fastest way to ruin a swim.
So we decided to fix it.
The Handy 3-in-1
We spent an off-season working on the three things that bother us most about a beach day, and ended up with one object that solves all three: the Handy 3-in-1 Inflatable Beach Pillow, Waterproof Dry Bag & Swim Buoy.
Here's what each of the three actually does.
1. Your valuables come with you
Stop looking over your shoulder. At the core of the 3-in-1 is a 1-liter airtight compartment with a zip closure. Before you head in, drop your phone, keys, wallet and sunglasses inside and zip it shut.
Your things stay dry — and because it tethers to you with an adjustable waist strap, they float alongside you instead of sitting unattended on a towel. That's the whole point: the safest place for your phone isn't a better hiding spot on the sand, it's not being on the sand at all.
2. Visible in the water
When inflated, the 3-in-1 works as a swim buoy — the bright tow-float that open-water swimmers use so boats and lifeguards can see them. At 18 inches by 11 inches in durable nylon PVC, it sits high enough on the surface to be obvious from a distance.
That visibility is the real safety benefit. A swimmer's head is very hard to spot from a boat or a lifeguard stand; a bright float on the surface is not. And if you want to stop and catch your breath, it's there to hold onto.
What it isn't: a life jacket. The 3-in-1 is not a Coast Guard-approved personal flotation device, and it's no substitute for being able to swim, for supervising children, or for swimming where there's a lifeguard. It's a visibility aid and something to hold onto while you're in the water — that's genuinely useful, and we'd rather tell you exactly what it is than let you assume more.
3. A pillow that stays put
What happens when you're done swimming? Most inflatable beach pillows are useless — stand up and the breeze sends them down the beach.
Not this one, and for a simple reason: your phone, wallet and keys are still inside it. That weight keeps it where you left it, with no sand-filling required. It comes with a soft terry cloth cover, and the cover has a built-in chair strap that loops around a beach or lounge chair, so you can have an actual nap without it sliding off behind you.
Completing the zero-stress setup
We write a lot about the zero-stress beach day. A wind-resistant umbrella and a sand-free blanket give you a base camp. This is the piece that lets you leave it — walk into the water without doing the math on what you're leaving behind.
Walk into the water without looking back.
Shop the Handy 3-in-1
Frequently Asked Questions
Do things really get stolen from beaches?
Opportunistic theft from towels and bags is common enough that most coastal police departments post seasonal warnings about it. The pattern is almost always the same: someone walks past an unattended setup while the owner is in the water. Taking your valuables with you removes the opportunity entirely.
Is a beach dry bag actually waterproof?
The 3-in-1 uses a 1-liter airtight compartment with a zip closure, so the thing that matters is closing it fully and checking the seal before you walk in — the same habit as checking a zip on a wetsuit. Closed properly it keeps contents dry through swimming and splashing.
Is a swim buoy a life jacket?
No. A swim buoy is a visibility aid that gives you something to hold onto — it is not a Coast Guard-approved personal flotation device and doesn't replace swimming ability, supervision, or a lifeguard. If you need a life jacket, buy a life jacket.
Can I take my phone in the ocean in a dry bag?
Yes, with the compartment closed properly. It's still worth backing your phone up before a beach day, and worth knowing that saltwater is far less forgiving than fresh if anything does get in.
What do I do with my keys at the beach?
Car key fobs are the item people most often ruin, because they're the one thing you can't leave in the car. A sealed compartment you keep with you solves it. Failing that, a lockbox at the beach entrance if your beach has them.
About the author: Agnes is the co-founder of Handy Beach Goods. After years of hiding her phone under a towel and half-watching her kids in the water, she set out to design beach gear that lets families actually relax.
