TECH SPECS

Breathability
Built for shifting conditions.
Low Airflow High Airflow

Moisture Wicking
Keeps you dry through every run.
Low Wicking High Wicking

Fit
Performance Fit
Weight
43 g (Size M)
Materials

89% Polyester

11% Elastane

Care
  • Machine wash cold
  • Wash with like colors
  • Do not bleach
  • Lay flat to dry
  • Do not iron
  • Do not dry clean

FUNCTIONALITY

4-WAY STRETCH
4-WAY STRETCH
Engineered elasticity moves with your body for unrestricted motion and precision fit.
BREATHABLE AIRFLOW
BREATHABLE AIRFLOW
Micro-grid construction enhances ventilation to keep you cool when the pace rises.
RAPID DRYING
RAPID DRYING
Dries fast to reduce cling and maintain comfort through high-intensity efforts.
RECYCLED PERFORMANCE
RECYCLED PERFORMANCE
Built with advanced recycled yarns, combining sustainability with high-performance output.

LIGHTWEIGHT COMFORT

Ultra-light construction feels barely there, allowing you to move freely without distraction or bulk.

Product Details

Please read our FAQs page to find out more.

Is the ORUUN Running Tank suitable for hot and humid weather?

Yes. The ORUUN Running Tank is designed for running in hot and humid conditions. Its ultra-light construction and breathable technical fabric are designed to reduce unnecessary bulk and restriction as temperature, humidity and effort increase.

What is the ORUUN Running Tank made from?

The ORUUN Running Tank uses MAESTRALE ECO GRS fabric from MITI Spa in Italy. Made from 89% polyester and 11% elastane, the fabric uses post-consumer recycled polyester and was selected for its low weight, stretch, ventilation and breathability during high-output running.

How does the ORUUN Running Tank fit?

The ORUUN Running Tank has a performance-focused fit designed to sit cleanly on the body while keeping excess material to a minimum. Its stretch construction supports natural movement without requiring a loose or bulky fit.

What types of running is the ORUUN Running Tank designed for?

The ORUUN Running Tank is designed for warm-weather training, tempo sessions, intervals, long summer runs and race efforts, particularly when low weight, ventilation and freedom of movement are priorities.

What is ORUUN DRY FLOW™?

DRY FLOW™ is ORUUN’s performance approach for running in warm, humid and high-sweat conditions. In the Running Tank, it combines breathable technical fabric with ultra-light, minimal construction to prioritise ventilation and reduce unnecessary restriction during high-output running.

  • 5 stars: 27 (96%)
  • 4 stars: 1 (4%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Joshua H.
A wet fabric observation

I don't expect a tank to float away from my skin once saturated. What matters is whether the contact feels abrasive or restrictive. This remained soft and moved with my torso rather than holding in one place. That's a much more useful quality to me than a promise to stay dry in conditions where nothing will.

A
Alice R.
The last lap mattered

During short repeats I barely notice clothing. In the longer efforts, especially as sweat builds up, I do. This tank stayed pliable across the chest and didn't start pulling from the straps when I was tired. I liked that the arm openings still felt clear on the last lap, when my technique was considerably less tidy than on the first.

F
Finn H.
Good for a new routine

At 41, running is something I'm learning rather than returning to. I like having a piece of kit that makes the whole process feel a bit more enjoyable. The purple is lovely and there's no heavy shirt to deal with when I get hot.

M
Mia C.
Very good, with one small wish

I like the purple and pink design and the soft feel when sweaty. I'd have appreciated a few more fit photos before choosing a size. Now that I have it, the shoulder freedom is exactly what I wanted.

G
George H.
Something different at the track

Most of my kit is plain. The angular pink pattern over purple makes this a fun change without sacrificing the fine fabric I want for training.

E
Ethan H.
Some thought went into this

There's a difference between choosing a colourful top and choosing a running top that happens to have an interesting design. This feels like the latter. The fabric has enough flexibility that the pattern doesn't come with a stiff printed feel, and the shoulder cut gives me space to move. I would still like it in a plain colour, which is usually how I know the underlying garment is doing its job.

O
Olivia G.
Found my club photo shirt

The pink pattern is easy to recognise in a group shot. Also comfortable for the actual running before the photo, which seems worth mentioning.

E
Evie B.
Less sticky through the walking breaks

I'm following a beginner plan with timed walks. Usually the shirt starts bothering me when I stop running. This sat more comfortably against my chest instead of feeling like something I needed to peel away at every break.

D
Daniel C.
The colour stays in the conversation

My friends keep asking about the purple and pink. I keep telling them the fabric is the better part. Both are good reasons to like it.

F
Florence C.
Folds into almost nothing

Useful when your gym bag is already a disaster.

L
Lucy R.
Italian fabric, ordinary route

You don't need an exotic training camp to enjoy nice material. Mine gets its exercise around the same suburban streets every week.

I
Ivy H.
For morning miles before lectures

Most of my running happens before uni, which means kit has to be ready without much planning. This is easy to wash, dries readily and takes almost no space on the rack. Also a much better colour choice than my old grey tee.

S
Sienna P.
A present I actually use

My sister bought me this because she was tired of seeing the same faded top in every running photo. Fair criticism. The upgrade in how it feels was a much bigger surprise than the colour.

R
Ruby K.
A good companion to black shorts

The singlet does the interesting part. The rest of my outfit can stay very simple.

J
Joshua P.
Bought for a first race

I spent more time choosing kit than planning my pacing. At least one of those choices worked out. The tank was soft around my arms and I didn't have to keep straightening it while moving. I was sweaty and nervous at the start, sweaty and delighted at the finish. The singlet gave me very little to fuss about in between, which was exactly what I needed on that day.

M
Matilda P.
An easy yes for me

Liked the graphic. Loved the lack of bulk.

L
Logan P.
Stairs after the run

Walked up to my flat still wearing it and didn't feel wrapped in wet fabric. A welcome little detail at the end.

E
Ethan A.
Less pulling when I turn

Our route has lots of corners and little changes of direction. I appreciate how easily the fabric follows my upper body rather than tugging across it.

S
Sophie C.
Happy on the hills

My upper arms brush my sides more when climbing. The smooth material was particularly welcome there.

D
Daniel T.
The airy one

That's how I now identify it when deciding what to wear.

A
Archie W.
Doesn't crowd the neckline

The neck and shoulder area felt comfortable through warm up drills. I dislike feeling hemmed in before I even start running.

H
Henry P.
Purple was an easy decision

The purple base with pink shapes is brilliant. I was sold before I read the fabric details.

O
Oliver H.
The medium weight is tiny

43 g on the product description made me curious. Holding it makes that number less abstract.

A
Archie C.
A proper treat

Most of my running purchases are replacements for things that have worn out. This was an enjoyable exception. I chose it because I loved the purple design, then found it was the nicest thing in the drawer to put on for a warm morning. Being in my sixties hasn't made me less interested in colour. It has made me less willing to tolerate uncomfortable kit, and this passes that test nicely.

A
Ava A.
Not a complicated verdict

The straps feel comfortable. The material feels gentle. I like wearing it.

L
Layla W.
Great for an unplanned extra loop

Went out for a short jog and felt like carrying on. The tank was still comfortable when the plan changed. Nice when your clothing isn't what sends you home.

W
William C.
A bit of colour therapy

Purple and pink beats another early alarm. Well, almost.

A
Amelia R.
Would happily choose it again

The novelty of a new design wears off. The pleasant feel of the fabric hasn't.