I am so thrilled with my purchase of the shinjuku messenger!
The bag is simply perfect; it's stylish, durable, flexible, comfortable and really well made.
It fits everything I need for my everyday carry whitout being bulky.
That's a laptop, notebook, pens, charger, lunch, waterbottle, phone, wallet etc. And even after all that, it still fits gym clothes
10/10 highly recommended!
From ordering the bag to receiving it was also smooth and painfree
The Shinjuku Duffel bridges the gap between my old travel backpack and leather briefcase, hauling everything I’d normally cram into a pack—laptop, tech pouch, meds, even a change of clothes—while still looking sharp enough for any client meeting. Its wide-mouth opening and smart pockets make packing and unpacking effortless, the heavy canvas is a timeless classic with a build that feels bulletproof, and it compacts neatly when lightly loaded so it never looks like I’m lugging a full-sized duffel. I nearly chose the X-Air Travel Duffel, but the Shinjuku’s cleaner profile and true briefcase-to-duffel versatility won me over. If you need one bag that looks professional, travels well, and handles everyday duty, this is it.
5 Stars! This bag is top-tier in both quality and style, absolutely thrilled with my purchase.
It effortlessly holds everything I need for my daily commute: laptop, keyboard, mouse, tablet, keys, phone, wallet, water bottle, umbrella, pens, notepad, snacks, gloves, charger, headphones, sunglasses, and much more.
The Supreme Suspension Strap is exceptionally comfortable and the built-in bungee system adds an incredible layer of support when the bag is fully loaded.
Design details

DUFFEL + BRIEF IN ONE
Is the Shinjuku Duffel a briefcase with extra space for overnight items? Or a compact duffel with a dedicated work section? It's both!
The Shinjuku Duffel's layout, structure, and organization efficiently store an overnight's worth of gear without creating a large, unwieldy bag.
Unlike traditional duffels where items shift around freely, the Shinjuku Duffel features three distinct compartments that keep work gear, personal items, and frequently-accessed essentials neatly separated. No more digging through a jumbled mess — simply go to the right compartment to find what you need.
Perfect for today's hybrid work styles, its compact size fits in overhead bins and and stands upright on metro floors. Pack light for the office or load it up as a sophisticated weekender bag.

DETAILS MATTER
As with all WaterField products, the Shinjuku Duffel includes thoughtful features designed for daily comfort and convenience. When fully packed, the two main compartments stay securely closed while you access smaller items from the dedicated pockets.
The discreet rear pocket uses rare-earth magnets for secure, silent closure, perfect for passports and valuables. The front pocket holds frequently accessed items like your wallet, phone, or keys, with a built-in tether to keep keys secure. Everything closes with water-resistant YKK zippers.

GO BALLISTIC
Ballistic Nylon is a resilient textile that blends durability, lightness, and weather-resistance. Its sleek, understated aesthetic makes it an ideal choice for the Shinjuku Duffel, a bag designed to be comfortable, lightweight, and stylish.

TRADITIONAL 15 OZ. WAXED CANVAS
Not all waxed canvas bags are created equal. Lower quality bags use 6 oz. canvas. The majority designated as “durable” use 12 oz. canvas. At 15 oz., our waxed canvas exceeds what is commonly sold in the market, yet it's still lightweight. Its naturally rugged, distressed look and can be re-waxed to freshen it up.
We source our canvas from a reputable U.S. mill that has produced these fabrics since 1930. This specialized textile is coated with Martexin Original Wax™ and shouldn't require much cleaning. Stains can be wiped off with a damp cloth.

SHINJUKU COLLECTION
Inspired by the vibrant, fast-paced Tokyo neighborhood, the Shinjuku Collection is designed to help you nimbly navigate your way through crowds. These stylish bags are compact, lightweight, and comfortable to carry.
Crafted from traditional Waxed Canvas or modern Ballistic Nylon with full-grain leather accents and premium hardware, these bags are made to last.
HOW TO FRESHEN UP CANVAS
If you have the Shinjuku Duffel in traditional waxed canvas, you can keep it looking like new by applying wax when you think it needs a little refresh. While any quality wax will work, we recommend Martexin Original Wax™ — the same premium coating originally applied to your canvas bag.

made in usa
We're proud to offer American-made gear built for the long haul. All our products are designed and made in our San Francisco workshop, where rent is high, labor expensive, and competition intense. We wouldn't go anywhere else.