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CIPHER by Essly — Anti-Theft Flat Sling Bag

CIPHER by Essly — Anti-Theft Flat Sling Bag

 4.9/5 — by verified CIPHER carriers

✓ Hands-Free. All Day.

✓ Built to Stay Concealed

✓ Sits Flat Under a Jacket

✓ Carries What Matters — Nothing More

Regular price $49.99
Regular price $49.99 Sale price $54.99
SAVE 9% Sold out
  • Try 60 Days Risk Free
  • Lifetime Strap Guarantee
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CIPHER by Essly — Anti-Theft Flat Sling Bag

CIPHER by Essly — Anti-Theft Flat Sling Bag

Regular price $49.99
Regular price $49.99 Sale price $54.99
SAVE 9% Sold out
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    "The first weekend I didn't have to raid my wife's handbag for space. Hands free at the playground, phone comes out in a second — even with a toddler on my hip. Should've bought this two kids ago."

    David M. ✓ Verified Buyer
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    "I did Italy alone at 58. My daughters made me promise I'd get a proper bag. This one doesn't look like an anti-theft bag — nobody knew. I finally stopped touching my pocket every 30 seconds and just looked up at the buildings."

    Priya R. ✓ Verified Buyer
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    "Pilates to Trader Joe's to a wine bar without changing bags. Doesn't bounce when I jog. Fits my phone, card, keys, AirPods. Finally not carrying my whole life around in a tote."

    Mia K. ✓ Verified Buyer
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    Reinforced, Built to Last

    Nylon-webbing strap with double-stitched, reinforced construction — made for daily wear, not a single season. No hardware to snag, no seams that give out.



    Sits Flat. Disappears Under a Jacket.

    Ultra-slim asymmetric design lies flush against your chest — 30% thinner than the average sling. Wear it under a coat, hoodie, or blazer. Nobody sees it. Nobody knows.

    Concealed Compartment, Nothing Exposed

    The main compartment sits flush against your body, out of sight from behind. Adjustable buckle strap for a secure, no-slip fit. Zero visible zippers on the exposed side — nothing for anyone to spot at a glance.


    Lifetime Strap Guarantee

    Strap wears out? Buckle fails? We replace it — free, anytime, forever. Your CIPHER is built for the long haul, and we back it with a lifetime promise.

    "REAL CARRIERS. REAL PROTECTION."

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      Built for the Unseen

      CIPHER is engineered for the people who need to move through the world without being noticed. Whether you're navigating crowded metros, doing your first solo trip abroad, or just tired of stealing pocket space in your partner's handbag — concealed construction meets minimalist design for the safest, most invisible carry you've ever worn.

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      For Weekend Parents


      Hands free at the playground. Phone accessible in one motion. Keys, wipes, and a snack all in one place — without the backpack, without the bum bag, without stealing space in your partner's handbag.

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      For Solo Travellers Over 40


      Pickpockets can't see it under a cardigan. Daughters stop worrying. You finally stop patting your pocket every 30 seconds and start looking up at the buildings you came to see.

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      For Athleisure-to-Life Girls

      From Pilates to groceries to a wine bar. Sits flat, doesn't bounce, works with leggings AND jeans. One bag for every part of your day — no more switching bags between the gym and errands.

      Why CIPHER Outperforms Other Slings


      Built for the way you actually move — not for a spec sheet. See how CIPHER compares to ordinary sling bags.

        Others
      Reinforced, Double-Stitched Strap
      Sits Flat Under a Jacket
      Concealed, Body-Worn Compartment
      Hidden Back Pocket
      One-Handed Access
      Water-Resistant Polyester Construction
      Lifetime Strap Guarantee
      60-Day Risk-Free Trial

      Protects What Matters. Hides What Counts.

      A concealed, body-worn design keeps your things out of view. Reinforced construction and a hidden back pocket mean nothing's sitting in plain sight — so you can walk through Rome, Bangkok, or the London Underground without ever wondering where your hand should be.


      Shop Now — From $49.99
      • 🕐 60-Day Risk-Free Trial

        Wear it for two months. On flights, in crowded metros, at festivals, on the school run. Decide on day 59. If it doesn't change how safely you move, send it back — full refund.

      • 🛡️ Lifetime Strap Guarantee

        Strap fraying? Stitching giving out? We replace it — free, anytime, forever.

      • 🚚 Free Shipping

        Every order ships free — no minimum, no code, no fine print. Your CIPHER leaves our warehouse within 24 hours and arrives with tracking every step of the way.


        Frequently Asked Questions

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        Will CIPHER be comfortable to wear all day?

        Absolutely. The asymmetric design distributes weight across your shoulder and back, not just one strap point. The padded strap sits flat and doesn't dig in — even after 8+ hours of continuous wear. Unlike bulky backpacks or fanny packs, CIPHER stays flush against your body and moves with you.

        Through concealment, not force. The main compartment sits against your body, invisible from behind. There are zero visible zippers on the exposed side, so there's nothing for someone to spot or target in a crowd. It won't stop someone who grabs and runs — no bag does — but it's built so nobody knows there's anything worth grabbing in the first place.



        Yes. CIPHER holds a phone up to 6.7" (iPhone 16 Pro Max, Samsung S24 Ultra), a slim wallet or up to 8 cards, keys on the internal clip, a passport in the hidden back pocket, AirPods case, sunglasses, and small essentials. Enough for a day out, a full commute, or a full day of travel — nothing more, nothing less.

        Most "anti-theft" slings on Amazon rely on the name alone — same construction as a regular bag with a different label. CIPHER focuses on what actually deters theft in practice: a concealed, body-worn compartment with no visible zippers, reinforced double-stitched construction, and a design built to disappear under a jacket instead of announcing itself.



        No. CIPHER is designed to be invisible when worn under outer layers. The asymmetric shape sits flush against your chest — 30% thinner than a traditional sling. Wear it under a coat on the commute, under a blazer at a business dinner, under a hoodie at the gym. Nobody sees it. Nobody knows.

        Water-resistant. The polyester exterior
        handles rain, coffee spills, and daily commute weather without letting moisture through. It's not designed for full submersion. For heavy sustained rain plus electronics inside, a small dry pouch adds an extra layer of insurance.

        Then you don't pay. Period. Wear CIPHER every day for 60 days. If it doesn't change how safely you carry, send it back. Full refund.

        Absolutely. CIPHER is a favourite for frequent travellers. The compact profile fits under airline seat requirements, the hidden pocket is perfect for a passport and boarding pass, and the reinforced strap handles crowded terminals, taxis, and metros. Many customers say they finally stopped worrying about pickpockets in Rome, Barcelona, and Bangkok.

        Orders ship within 1-2 business days. Standard US delivery is 7-12 days and free with every order. Tracking is emailed the moment your CIPHER leaves the warehouse.

        • Better than the fanny pack

          "I do the school run, weekend soccer practice, and every trip to Costco with two kids under 8. I've tried every dad bag on the market. This one actually stays out of my way — one hand grabs my phone, the other holds a toddler. Never taking this off."

          Marcus — Brooklyn, NY

        • Danced all night, without worry

          "I go to 15+ shows a year. Every festival bag I've owned either dies in the rain or bounces around the second I start dancing. This one sits flat under my jacket — I genuinely forget it's there until I need my phone. No pat-downs, no paranoia, no death-grip on my bag in the pit."

          Jordan — Austin, TX

        • Finally travelling without a money belt

          "I retired at 62 and started doing wine-country solo trips. Douro Valley, Rioja, Piedmont. My kids kept sending me hiking-style money belts. I wanted something a grown woman actually wears. This one lives under my cardigan — nobody sees it, and I finally stopped worrying every time I paid for a tasting."

          Elena — Portland, OR

        • Cleared security at ease

          "I fly for work almost every week. This is the first bag that actually disappears under my blazer — no strap lines, no bulk, nothing that screams 'I'm carrying valuables.' Hidden pocket keeps my passport exactly where I left it. Nobody's asked me what it is once."

          David — Chicago, IL

        • Bought one for me, ended up buying three

          "Got mine for a work trip and my husband kept 'borrowing' it before I even left. Did the Buy 2 Get 1 Free so we'd each have our own — my brother walked off with the third one at Christmas. Best problem I've ever had with a bag."

          Rachel — Denver, CO

        • One bag from morning to wine bar

          "I'm a freelance designer. My laptop, phone, keys, and card all live on my body all day — from my morning coffee shop to a client meeting to a wine bar with friends. Every crossbody I've tried is either too big or bounces when I bike. This one sits flat, works with everything I wear, and my laptop bag isn't the only thing I trust anymore."

          Sophie — San Francisco, CA

          You deserve to move through the world without worry.

          Thousands of parents, travellers, and everyday carriers have already made CIPHER their default. Tonight — or tomorrow morning at the airport, or Saturday at the park — could be your first day of hands-free peace of mind.

          Get CIPHER — From $49.99

          Free Shipping · 60-Day Trial · Lifetime Strap Guarantee