MUSO wearing the OneShot OFFICINA 01 shirt, dark glasses and a black face mask

Officina 01

OneShot FR Jacket — OFFICINA 01

I work on site, and for years I watched FR Jackets become part of welding culture, above all in the United States. I was asked more than once to wear other brands, but after building OneShot my own way I preferred to make my own. OFFICINA 01 is the first OneShot FR Jacket: I am the first to wear it, on the real job.

See the shirt — 69 €How it’s made
Fabric Cotton with FR treatment*
Weight 340 g/m²
Sizes S–XXL

* Figure declared by the fabric manufacturer — Notes on materials

Fabric Cotton with FR treatment*
Weight 340 g/m²
Sizes S–XXL

* Figure declared by the fabric manufacturer — Notes on materials

Free shippingIn Italy over 69 €. Delivery in 2–4 working days.
30 days to returnPer the terms of sale.
I test it myselfI actually wore OFFICINA 01 on site before putting it on sale.
I answer myselfQuestions about size or fabric: write, I’ll answer you myself.
Availability by size Preparing a flange on site

The flagship piece

OFFICINA 01 — Work shirt

Cotton fabric with FR treatment, 340 g/m². Metal snap-button closure, cuff adjustable to three positions and two chest pockets. OneShot embroidery on the chest, welder logo on the left sleeve and FR detail on the right sleeve. First edition: black.

  • Cuff adjustable to three positions
  • Longer back hem
  • OneShot embroidery on the chest
  • Two chest pockets with flap and snap closure

69,00 €

Available: S, M, L, XL

Made to order: XXL

See the shirt Tech sheet

Anatomy

Six details
of OFFICINA 01.

Hover over the points and see how it’s built. Tap the points and see how it’s built.

The OFFICINA 01 FR Jacket, with the detail points
01

Reinforced collar

Structured collar, with a build and stitching meant to keep a clean line on the garment.

Fabric
Cotton with FR treatment
Fabric weight
340 g/m²
Closure
Metal press studs
See the product

On the job

The FR on the job.

The photos come from the real job: the jacket on me and on my mates, on site.

  • The FR Jacket seen from behind, on site in front of a pipeline
    The jacket, on site
  • Welding in progress with the arc lit and the mask down
    Arc struck
  • The OneShot MUSO embroidery on the sleeve of the shirt
    The embroidery on the sleeve
  • An angle grinder at work, sparks and gloves
    Angle grinder
  • Welding a pipeline, standing on a ladder
    On the ladder
  • Preparing a flange on site
    Prepping the flange
  • The OneShot embroidery on the chest of the shirt, at work
    The embroidery on the chest
  • Visor up, a moment between one weld and the next
    Visor up
  • Filler rod in hand, welding gloves
    Rod in hand
  • Welding a stainless steel pipe
    Welding on the pipe

Where it comes from

The real job,
filmed as it happens.

@oneshotmuso
214K TikTok
76.1K Instagram
67.9K YouTube
TIG Welding cleaning ✨22K likes · 57s 34K likes · 61s 11M Views on TikTok in 2024... Let's Do It14K likes · 60s 9,1K likes · 56s 2,5K likes · 61s T-PEN changed the game ✅1K likes · 43s 1,8K likes · 60s Stick + TIG = STIG?653 likes · 50s

Latest post from August 9, 2026 · @oneshotmuso

Who’s behind it

I’m a pipe welder. I work on industrial plants, treatment works, paper mills and water mains.

On social media I don’t try to play the professor: I show how I work, on the real site. Then everyone watches, compares and makes up their own mind.

“One Shot” was pinned on me by the lads on site: sometimes I’d close a flange in a single pass, and at the end of the round they’d shout it for a laugh. The name stuck.
The whole story
The welding glove with the OneShot embroidery, after the shift

Restocks

I’ll write when
your size is back.

You can pre-order it at any time, but if you’d rather not wait more than a month, leave your email: I’ll let you know when your size is back in stock.

One email, when it happens. You can opt out whenever you want.