Volume15 L
Weight500 g
Dimensions28 × 44 × 12 cm
Laptop16-inch
Sandqvist · STREAM Messenger Bag
STREAM Messenger Bag: chest strap buckled, it stays on your back on the bike.
The STREAM Messenger Bag is a 15-litre waterproof Sandqvist messenger bag in PU-coated recycled polyester, weighing 500 g. In the morning, you swing it onto your back, buckle the chest strap, and it stays put all the way to the office. The 16-inch laptop travels inside, under a flap closed by two buckles.
Cycling · Office · Rain
On your back on the bike, laptop inside.

Laptop
The 16-inch has its own pocket, held by a press-stud tab.
Under the flap, a 44 × 28 cm pocket takes the 16-inch laptop, and a press-stud tab holds it in place when you open the bag. In the main compartment, a zipped pocket keeps the charger and small things.
16-inch
44 × 28 cm pocket, closed by a press-stud tab.

Water-resistant or waterproof

On your back
A chest strap, a padded back: the messenger stays put on the bike.
- Chest strapBuckled across your chest, it stops the bag sliding round as you pedal.
- Padded backWave-stitched mesh over foam, against your back.
- CrossbodyIt clips on for wearing over the left shoulder or the right, and adjusts to your size.


What fits inside
15L
15 litres: the laptop, the charger and a day at the office.
The flap closes with two clip buckles; on top of it, a zipped pocket keeps what you take out often, with nothing to unbuckle. Inside, the laptop pocket and a zipped pocket for small things. A handle on top lets you carry it in your hand.
- A 16-inch laptop, in its pocket
- Keys and travel card, in the zipped flap pocket
- Charger and small things, in the inner pocket
To scale
44 cm wide and 28 tall: the 16-inch goes in lengthways.
12 cm deep: on your back, the messenger stays close to your body.
- STREAM Messenger28 × 44 × 12 cm
- 16-inch laptop36 × 25 cm, lengthways in the bag
- A4 sheet29.7 × 21 cm
The range
Four STREAM crossbody bags, from half a litre to 15 litres.

STREAM Messenger Mini
0.5 L · 180 g · 14 × 20 × 6 cm
Phone, keys and wallet, under a small press-stud flap.
See the STREAM Messenger Mini
STREAM Shoulder Bag
1 L · 200 g · 16 × 13 × 7.5 cm
One litre, taller than it is wide, crossbody or on the shoulder.
See the STREAM Shoulder Bag
STREAM Sling Bag
3 L · 340 g · 16 × 27.5 × 7 cm
The bum bag: crossbody or round the waist, with a padded back.
See the STREAM Sling Bag
STREAM Messenger Bag
15 L · 500 g · 28 × 44 × 12 cm
The cycle-commute messenger: chest strap and a 16-inch inside.
This bag
Photos to the same scale: 14, 16, 16 and 28 cm tall. At Eiken, the STREAM series also includes the Weekender Bag 49 L and six backpacks.
In the rain
A downpour on the cycle lane: the waterproof fabric keeps it out.
Light rain
Water-resistant fabric
Light rain and road spray run off it; in steady rain, water eventually gets through.
Proper rain
Waterproof fabric
PU-coated recycled polyester and YKK Aquaguard zips, flap pocket included: the laptop stays dry in steady rain.
This bag
Waterproof in the rain, not made to be submerged.

Sandqvist
Bags for the city and for the forest, designed in Stockholm since 2004.
Three childhood friends, Anton, Daniel and Sebastian, founded Sandqvist in Stockholm: they split their time between the city and the forest and couldn't find a bag made for both.
Every prototype is carried by bike around Stockholm, on trains and planes and along forest paths before it makes the collection.
Sandqvist guarantees its bags for two years against manufacturing defects: zips, buckles, seams. For a bag bought from Eiken, the claim goes through us.
Eiken's take
- Why we chose it
- A waterproof messenger that stays on your back on the bike: chest strap, shoulder strap on the left or right, and room for a 16-inch.
- Worth knowing
- 15 litres, flat: a day at the office, not your gym kit as well. To take everything, the STREAM Rolltop Backpack L goes up to 34 litres.
- Who it's for
- Anyone who cycles to work and would rather have a messenger bag than a backpack, even in the rain.
Baptiste, Eiken
Specifications
- Volume15 L
- Weight500 g
- Dimensions28 × 44 × 12 cm (height × width × depth)
- Laptop16 inches, 44 × 28 cm inner pocket, press-stud tab
- Closureflap with two clip buckles
- ZipsYKK Aquaguard
- Storagezipped pocket on the flap, zipped inner pocket, laptop pocket
- Carryon your back, crossbody or in the hand (handle); adjustable shoulder strap, left or right; chest strap
- Backpadded, stitched mesh
- FabricPU-coated recycled polyester, waterproof
- Liningrecycled polyester
- Foamrecycled polyethylene
- Webbingrecycled nylon
- Veganyes
- Made inVietnam
- Sandqvist guarantee2 years, manufacturing defects
- Sandqvist reference252505 (Black: 252505999)
Specifications, dimensions and weight: Sandqvist data (sandqvist.com, October 2026).
Questions
What are the dimensions and weight of the STREAM Messenger?
28 × 44 × 12 cm (height, width, depth) and 500 g empty, for 15 litres. The laptop pocket measures 44 × 28 cm.
Is the STREAM Messenger waterproof?
Yes, it's waterproof: with PU-coated recycled polyester and YKK Aquaguard waterproof zips, it keeps your things dry in the rain. It's made for rain, not for being submerged.
STREAM Messenger or STREAM Zipper Backpack 16"?
The Messenger is a messenger bag: 15 litres, 500 g, 12 cm deep, a chest strap, and the laptop under the flap. The Zipper Backpack 16" is a 23-litre backpack weighing 720 g that opens with a zip, with the laptop coming out at the top. Both are waterproof and take a 16-inch.
Does the STREAM Messenger fit under the seat on a plane?
On easyJet, yes: at 28 × 44 × 12 cm, it fits the 45 × 36 × 20 cm free small bag. On Ryanair (40 × 30 × 20 cm), no: its 44 cm width is too much, so it goes as a cabin bag (55 × 40 × 20 cm). Size limits checked in October 2026: check with your airline.



