Rough Mountain Rz 300 | Civil & Mechanical Engineers T-Shirt

100% Airlume Combed Ring-Spun CottonLightweight

  • Black t-shirt featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Man in black tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Woman in black tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Close up of black tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Man in navy tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Woman in navy tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Close up of navy tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Man in white tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Woman in white tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
  • Close up of white tee featuring an Rz 300 surface profile mountain graphic and "Peak to Valley" text.
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€23,95 EUR
€23,95 EUR
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Free shipping over €65  · Shipped from the EU
Size Guide

Design Story

Built for engineers and machinists who look at mountains and instinctively think ‘that’s definitely not Ra 0.8’.

Average roughness (Ra) is fine for standard machining, but when the cuts get brutal—like flame cutting or heavy sawing—you need to measure the absolute extremes. Rz measures the distance from the highest peak to the lowest valley. A callout of Rz 300 isn't just a surface finish; it's practically a topographical map. This engineer t-shirt celebrates the heavy structural steel world and the rugged professionals who thrive "from peak to valley." Whether on a construction site or in the QA lab, sometimes you just have to respect the rough terrain.

Best For

Best for mechanical designers, CNC machinists, and quality engineers who care enough about surface finish to argue Ra versus Rz at lunch.

  • Quality engineers operating profilometers and arguing over Rz vs. Ra.
  • Civil and structural engineers working with heavy steel beams and flame-cut plates.
  • Welders, fabricators, and heavy manufacturing professionals.
  • Outdoor enthusiasts who also happen to be hardcore metrology nerds.

Gift Guide

A spot‑on gift for the person who keeps a surface finish chart at their desk and calls bad machining ‘geography’.

Looking for the ultimate engineer gift idea for someone who loves both hiking and heavy manufacturing? This unique piece of technical work clothes perfectly blends nature with industrial metrology. It’s an ideal civil engineer t-shirt or a rugged funny engineer shirt for professionals who appreciate extreme dimensions.

Product Specifications

The Premium Fit You Deserve.

Incredibly soft, broken-in feel right out of the box.

  • Fit & Feel: Retail Fit (Unisex) – True to size with a slightly tailored cut. Not too boxy, not too tight.
  • Premium Fabric: 100% Airlume combed & ring-spun cotton (4.2 oz/yd²). Pre-shrunk to minimize shrinkage.
  • Durability: Side-seamed construction with shoulder-to-shoulder taping for lasting shape.
  • Ethical Sourcing: Dyed & Cut in the USA, assembled in Nicaragua/Honduras/Guatemala.
  • Printed with Care: Printed locally to ensure faster shipping and reduced carbon footprint.

Model Reference: Bella+Canvas 3001 (The Gold Standard of Premium Tees).

Washing Instruction

  • Wash 30C Icon

    Wash cold (30°C / 86°F), inside out, with similar colors.

    Use mild detergent. No bleach. No softeners.

  • No Bleach Icon

    Do not use bleach. It can damage fiber integrity.

    Tip: Use oxygen-based stain removers if necessary.

  • Tumble Dry Low Icon

    Tumble dry Low or Hang dry (Recommended).

    Optimum: Flat air dry to preserve fiber tension.

  • Iron Low Icon

    Iron on Low Heat if needed. Do NOT iron prints.

    Fabric naturally resists wrinkling post-wash.

  • No Dry Clean Icon

    Do not dry clean. Chemical solvents damage prints.

  • Eco Ink Icon

    Water-based inks.

    A faint scent may be present after printing and typically dissipates after the first wash.

"Treat your gear like hardware. Maintain it."

Supply Chain Certifications (Component-Level)

The certifications below apply exclusively to the blank garment manufacturer and inks.

• WRAP (Worldwide Responsible Accredited Production): The blank garment (Bella+Canvas 3001) is manufactured in WRAP-Platinum certified facilities, ensuring ethical, humane, and lawful conditions.
• FLA (Fair Labor Association): Bella+Canvas is an accredited FLA Participating Company, committed to upholding the highest labor standards globally.
• Eco-Friendly Dyes: The dyeing process uses bluesign®-approved dyes only, ensuring strict chemical safety and reduced water impact.
• Printing Safety: Our printing partners use water-based inks that are OEKO-TEX® Eco Passport certified, safe for adults and children.

Note: Any slight scent from the fixation agent is normal and disappears after the first wash.
More info: Supplier Certifications

Product Datasheet
StyleUnisex Regular T-Shirt
FitUnisex Tee - 142 GSM
Blank ReferenceBella+Canvas 3001
Third-Party Certifications , WRAP, FLA, bluesign®, OEKO-TEX® Eco Passport · View supplier certifications
ProductionPrint on demand · Ethical manufacturing
BrandgrabNade
Product Safety (EU / GPSR)

Age Restrictions

  • For adults only.

EU Warranty

  • 2 years statutory warranty in accordance with EU consumer law.

EU Product Safety & GPSR Compliance

In compliance with the General Product Safety Regulation (GPSR), grabNade and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards.

For any product safety related inquiries or concerns, please contact our EU representative:
📧 gpsr@sindenventures.com

320, rue Saint-Honoré, 75001 Paris, France
— or —
Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus

View full details

> Featured In

Ra vs Rz: What's the real Difference?

Ra vs Rz: What's the real Difference?

What is the real difference between Ra and Rz surface roughness? While Ra (Arithmetic Mean Roughness) provides a general average, Rz (Mean Roughness Depth) captures...

[ READ ARTICLE ]