Name: Schultertasche DeMaitre
Brand: MyCosmoStore
SKU: sling-bag-blue
Price: 70.0 GBP
Availability: InStock

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"This is the first bag that actually works, comfortable all day, surprisingly roomy, and I can grab anything I need without ever slowing down" -Devon H

BEST SELLER

4.8/5 based on 14,320+

Schultertasche DeMaitre

£70.00

£111.00

Save £41.00

Backpacks make you stop. This keeps you moving. 11L capacity, 180° swing-to-front access, organized compartments, built for you who can't pause mid-go.

⭐Get your gear in 2 seconds, not 2 minutes

⭐Backpack capacity, instant access.

⭐Durable, water-resistant build

⭐Perfect for travel, errands, every day

Farbe

Blau

Schwarz

Grau

Tarnung

Estimate delivery between Jan 02 - Jan 09

Key Features

Anti-Theft & Waterproof: Protect your valuables with secure, water-resistant materials.

180-Degree Opening: Easy access to the main compartment for quick packing.
Versatile Molle System: Customize your carry with attachment points for additional gear.
Large Capacity: Spacious 11L storage with multiple pockets for organized packing.
High-Quality Materials: Durable Oxford fabric and breathable padding for comfort.
Thoughtful Design: Ergonomic carrying system and sleek geometric pattern for style and functionality.

Perfect for urban commuting, outdoor adventures, and everyday use.

Specifications

Type: Softback, Crossbody Sling Bag
Capacity: 11L
Material: Oxford (main), Polyester (lining)
Pattern: Geometric
Closure: YKK Zipper
Interior: Computer interlayer
Carrying System: Physiological curve back
Handle/Strap Type: Soft handle
Colours: Black, blue, camo, grey
Dimensions: 38 x 12 x 25 cm
Single Package Size: 38 x 10 x 25 cm
Single Gross Weight: 1 kg
Usage: Travel, laptop, business, multifunction

Perfect for travel, business, and everyday adventure

Shipping and Delivery

Fast Shipping: Orders ship within 24–48 hours
Delivery Time: 3–7 business days (based on your location)
Tracking: You’ll receive a tracking number as soon as it ships

🚨Official Store Guarantee

You won’t find our authentic products on Amazon or third-party marketplaces. Order here to ensure you’re getting the real thing. Learn More

SEE IT IN ACTION:
SENT TO US BY OUR CUSTOMERS

This review is split into 2.

1. Service - a delay occurred in the beginning that I had to email to get an update. But once they got back to me, they were awesome in getting things to me very quickly. 2. Product - Absolutely love, love the sling bag!! Great amount of pockets the feel is fantastic and the zippers are slick and nice well but secure nicely. I certainly would suggest the bag to anyone and also thank customer service for keeping me happy!!

Verified Customer

All in all, for $100, it’s a great buy, and I am pretty happy with it.

Make the Velcro patch bigger!

Verified Customer

You're Backed by a Risk-Free, 30-Day Money-Back Guarantee!

We stand behind the quality and performance of the Cosmo Sling, and that's why we offer a hassle-free "Try It Risk-Free" guarantee.

Use it for 30 days. If you don't love it, get your money back and keep the bag.

Choose to return, Gift it to a friend. Donate it. Do whatever you want with it.

Your satisfaction is our top priority, and we're committed to making things right. If you're not happy, we're not happy, and we'll go above and beyond to ensure your investment is fully protected without the hassle of returns.

Trusted by over 40,000+ users worldwide, every sling bag is rigorously tested for absolute Capacity without sacrificing Durability or Functionality, Because you deserve nothing less.

A Bag That Works With You, Not Against You

Not all bags have your best interest in mind, sacrificing space for functionality or style for convenience. This bag was made for you. Say goodbye to stopping, buried gear, and time wasted. You're never going back to a backpack again.

QUICK ACCESS
Wear It Front or Back. Quick Access Either Way

No removing the bag, no stopping your work. Your gear, your way, always within reach.

Rapid-deploy access. Organized storage. Zero fumbling. Whether it's the decisive moment or the critical task, your gear is ready before the opportunity passes.

SMART ORGANIZATION
Space for a Full Day's Work, Organized Pockets Plus External Carry Outside.
11L main compartment with multiple pockets keeps everything separated and accessible.
Spacious enough for everything you need, organized enough to find it all instantly.
Compression strap holds extras like umbrellas, jackets plus a double water bottle compartments.
Find out more about the image below

KNOX LEVEL SECURITY
Your Valuables Stay Yours. Hidden. Protected. Secure.
Anti-theft compartments keep what matters most against your body and out of reach. Secure zippers, hidden pockets, and close-to-body design mean you move through crowds with confidence. Your gear is protected, always.

See What Everyone's Saying

30-day money-back guarantee included

FAQs

Can I fit my laptop in this?

Sure! While it's not necessarily a laptop bag, It does come with an interior computer interlayer, ideal for tablets or smaller laptops up to 14 inches. Please Note- it's not a laptop bag, please do not buy it specifically as a laptop bag!

Is this bag carry-on friendly?

Yes! With compact 11L capacity and dimensions of 38 x 12 x 25 cm, it fits perfectly under airline carry-on limits while keeping your essentials organized and accessible.

How easy is it to pack?

Super easy—thanks to its 180-degree clamshell opening and split-zoned compartments, you’ll have everything packed and ready to go in seconds.

Is it waterproof?

Yep. The outer material is made from high-quality Oxford fabric that’s both waterproof and anti-scratch, so your gear stays dry and protected no matter the weather.

Can the organizer bag fit inside the sling bag?

Absolutely! The organizer bag is designed to fit perfectly inside the sling bag's spacious compartments. It’s the ideal solution for keeping your smaller items like cables, chargers, and accessories neatly arranged and easily accessible.

Is this bag suitable for daily use and travel?

Absolutely. With an 11L capacity and clamshell 180-degree opening, it’s perfectly sized for carry-on travel while still being practical for everyday commuting. It features split-zoned compartments, anti-theft pockets, and a durable, waterproof build that’s ready for any adventure—urban or outdoors.

How does one strap fix what two straps cause problems with?

Load distribution.

Traditional backpacks pull weight straight down onto two small points on your shoulders. Over hours of walking and standing, that pressure adds up.

A single diagonal strap spreads the same weight across a much larger area of your torso — chest, back, and core muscles share the load instead of your shoulders taking it all.

Think about how a seatbelt works.
It’s angled across your body on purpose — to spread force instead of concentrating it.

I already have shoulder or back issues. Will this help or just hurt in a different way?

It removes the most common source of irritation.

If shoulder pain comes from straps digging in, the wider padded strap spreads pressure instead of concentrating it.

If upper-back tightness comes from carrying weight straight down for hours, diagonal carry reduces that constant downward pull.

If neck strain comes from compensating for imbalance, the cross-body position keeps weight closer to your center instead of hanging behind you.

Many customers chose this bag specifically because backpacks had become uncomfortable over time.

We’re not making medical claims.
But changing how weight is carried often changes how your body responds.

What actually fits in 11 liters? I need to carry real things.

Everything most people need for a full sightseeing day:

Tablet or compact camera

Water bottle (external pocket)

Light jacket or sweater

Phone, wallet, passport, power bank

Guidebook or notebook

Sunglasses, snacks, medications

It’s not meant to carry a 13" laptop or everything you own.
That’s what larger backpacks are for.

This is “one full day out” capacity — the amount that keeps you prepared without overloading your body.

How do I know this won’t start hurting after a few hours like everything else?

This is usually where the difference shows.

With backpacks, discomfort tends to appear around hour three — the point where straps start digging in and weight becomes noticeable.

With diagonal carry, pressure is spread instead of stacking in one place. That’s why many users report wearing it all day without adjusting or taking it off.

Everyone’s body is different.
But the advantage of load distribution doesn’t disappear over time — it becomes more noticeable.

I’m short / tall / heavier / thinner. Will this actually fit me properly?

The strap adjusts from approximately 30" to 52".

It fits most adults between about 5'2" and 6'4".
Because the strap sits diagonally, it naturally adapts to different torso lengths and body types.

If you’re well outside that range, fit may require adjustment.
But for the vast majority of people, the design works as intended.

What if I try it and it still isn’t comfortable for me?

Return it within 30 DAYS

If it doesn’t reduce the strain you’re used to from backpacks, you’re not stuck with it.

Comfort is personal.
We’re confident in the design — but you decide if it works for your body.

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"This is the first bag that actually works, comfortable all day, surprisingly roomy, and I can grab anything I need without ever slowing down" -Devon H

Schultertasche DeMaitre

SEE IT IN ACTION:
SENT TO US BY OUR CUSTOMERS

You're Backed by a Risk-Free, 30-Day Money-Back Guarantee!

A Bag That Works With You, Not Against You

QUICK ACCESS
Wear It Front or Back. Quick Access Either Way

KNOX LEVEL SECURITY
Your Valuables Stay Yours. Hidden. Protected. Secure.
Anti-theft compartments keep what matters most against your body and out of reach. Secure zippers, hidden pockets, and close-to-body design mean you move through crowds with confidence. Your gear is protected, always.

See What Everyone's Saying

FAQs

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Sprache

"This is the first bag that actually works, comfortable all day, surprisingly roomy, and I can grab anything I need without ever slowing down" -Devon H

Schultertasche DeMaitre

SEE IT IN ACTION:SENT TO US BY OUR CUSTOMERS

You're Backed by a Risk-Free, 30-Day Money-Back Guarantee!

A Bag That Works With You, Not Against You

QUICK ACCESSWear It Front or Back. Quick Access Either Way

KNOX LEVEL SECURITYYour Valuables Stay Yours. Hidden. Protected. Secure. Anti-theft compartments keep what matters most against your body and out of reach. Secure zippers, hidden pockets, and close-to-body design mean you move through crowds with confidence. Your gear is protected, always.

See What Everyone's Saying

FAQs

SEE IT IN ACTION:
SENT TO US BY OUR CUSTOMERS

QUICK ACCESS
Wear It Front or Back. Quick Access Either Way

KNOX LEVEL SECURITY
Your Valuables Stay Yours. Hidden. Protected. Secure.
Anti-theft compartments keep what matters most against your body and out of reach. Secure zippers, hidden pockets, and close-to-body design mean you move through crowds with confidence. Your gear is protected, always.