Built-In Strap Pockets

Modular Strap Pouches

- Modular backpack systems – Brands like Chrome or Mission Workshop let you buy backpacks and matching clip-on pouches that look seamless together.
- Universal strap pouches – These attach to almost any backpack, so you can upgrade the bag you already own.
Best Backpack with Phone Pocket on Strap
Backpacks with Shoulder Strap Pocket
SwissGear ScanSmart Backpack With Cell Phone Pocket on Strap

Fenruien Business Expandable Backpack

- Expandable design: More space when you need it, stays slim when you don’t.
- TSA-friendly: Opens flat 180° at airport security, with a back strap to slide over your luggage handle.
- Durable: Water-resistant 900D PU-coated Oxford fabric and strong YKK zippers protect your stuff.
- Comfortable: Padded shoulder straps, breathable back panel, and adjustable chest strap make it easy to carry, even when full.
Osprey Arcane Large Day Commuter Backpack

Kopack 15.6" TSA Laptop Backpack

Modular Backpack Systems: Shoulder Strap Pouches
Chrome Industries – Backpacks and Pouches
Rugged Backpacks with Smart Strap Pouches

If you need a backpack that can survive rain, city commutes, and daily abuse, Chrome Industries should be at the top of your list. Their bags are famously tough — we’re talking “built-like-a-tank” tough — and they’ve got a style that’s equally at home in the city or on a bike ride.
One of our favorites is the Chrome Barrage Cargo, a compact, highly water-resistant backpack with that signature roll-top closure and cool color combos. But Chrome’s real superpower is its modular system. Instead of being stuck with a fixed design, you can customize your carry setup with clip-on shoulder strap pouches designed specifically for their backpacks.
Want a place to stash your phone so you’re not digging through your bag every five minutes? Their Chrome Phone Pouch attaches securely to the shoulder strap, keeping your device safe and always within reach.
Need a bit more space for tech accessories? The Chrome Tech Accessory Pouch is perfect for cables, pens, chargers, or a small notebook — and it’s just as rugged and weatherproof as the backpack itself.
These pouches are a commuter’s dream: tough, easy to attach, and equally valid as standalone organizers you can toss inside your bag. With Chrome, you’re getting durability, flexibility, and a bag that can handle pretty much anything you throw at it.
Alpaka Elements Backpack + Modular Add-Ons

The Alpaka Elements Backpack + Modular Add-Ons is one of the best shoulder strap pouch setups you can get. This sleek, urban backpack is built for everyday carry and keeps your gear organized without feeling bulky.
What makes it stand out is Alpaka’s HUB Ecosystem – a clever system of magnetic accessories and modular pouches that attach right to your backpack straps. The Metro Pouch is perfect for your phone, earbuds, or transit card, while the Modular Sling gives you extra space and can even be worn as a mini crossbody bag.
If you’re looking for a customizable backpack with a phone pocket on the strap for work, travel, or city life, Alpaka is a top choice
Universal Backpack Strap Pouches – Upgrade Your Current Bag
Clakit Phone Strap Pack
BOOSTEADY Backpack Strap Pouch
REI Rainshield Strap Pocket
FAQS- Cell Phone Holder for Hiking Backpack
What is the Main Benefit of a Backpack with a Phone Pocket on the Strap?
The primary benefit is quick and easy access to your phone, transit card, earbuds, or other small essentials without needing to take off your backpack or dig through a main compartment.
Will a Built-in Shoulder Strap Pocket fit a Large Phone Like the iPhone 15 Pro Max?
Many built-in strap pockets are designed for smaller items like cards or earbuds, and may not accommodate larger phones. For more space, a modular strap pouch is often a better option.
Can I use a Universal Strap Pouch on any Backpack?
Yes, most universal strap pouches are designed to be compatible with almost any backpack that has a loop or tab on the shoulder strap for attachment.
What is the Difference Between Built-in Pockets and Modular Pouches?
Built-in pockets are integrated directly into the backpack’s design for a seamless look. Modular pouches are separate accessories that you can attach or detach as needed, offering more flexibility and typically more storage space.