A sage green graphic t-shirt featuring a vintage-style illustration of a koala holding a mug on a branch, with the text 'STAY QUIET' and 'the mug knows too much'. The t-shirt is displayed flat on a rustic wooden table with coffee beans and an iced coffee in the background.

Stay Quiet Koala T-Shirt

Sage / S
$29.99
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A sage green graphic t-shirt featuring a vintage-style illustration of a koala holding a mug on a branch, with the text 'STAY QUIET' and 'the mug knows too much'. The t-shirt is displayed flat on a rustic wooden table with coffee beans and an iced coffee in the background.
  • A sage green graphic t-shirt featuring a vintage-style illustration of a koala holding a mug on a branch, with the text 'STAY QUIET' and 'the mug knows too much'. The t-shirt is displayed flat on a rustic wooden table with coffee beans and an iced coffee in the background.
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Stay Quiet Koala T-Shirt

Stay Quiet Koala T-Shirt

Some secrets are better kept between you and the coffee.
$29.99
ColorSage
Size

Sizing Guide

Find your corresponding size on the chart to guide your purchase. Measurements are in inches.

Gildan 64000 T-shirt sizing guide
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Made to order • Ships in 1–4 business days • Most U.S. orders arrive in about a week
Shipping
$4.89 • FREE on 2+ items
Shipping details
Our Promise
Printed just for you. If it arrives damaged or misprinted, we'll replace it free.
Return policy
Original animal designs icon Why You'll Love This Design

Some secrets are better kept between you and the coffee.

Perched quietly on a branch with eucalyptus leaves surrounding it, this serious koala grips a mug like it knows exactly what went down. “Stay Quiet” and “the mug knows too much” make this a funny, slightly suspicious choice for koala fans, introverts, and anyone whose coffee has witnessed things.

Wild Life Coffee Club designs are made for caffeine addicts, chaotic mornings, and people who become significantly less approachable before their first cup. Apparel built for those embracing their slightly feral side one cup at a time.
T-shirt icon The Shirt Details
fabric & construction
  • 100% ring-spun cotton (153 g/m²) — soft, lightweight, year-round comfort
  • Tubular knit construction — no side seams for a smooth, clean drape
  • Ribbed crew neckline with shoulder tape to retain shape
  • Tear-away pearlized inner label for comfort
  • OEKO-TEX® STANDARD 100 certified
print quality
  • DTG and DTF print methods for crisp, vibrant artwork that lasts
care instructions
  • Machine wash cold with similar colors
  • Tumble dry low heat
  • Iron low heat if needed
  • Do not bleach · Do not dry clean
fit
  • Unisex true-to-size fit — when in doubt, size up for a relaxed feel
Laundry care icon Keep It Looking Wild
Listen, your shirt has been through a lot. It survived the design process, the print, the shipping — and now it's yours. Let's keep it that way.
Follow these simple care instructions and your tee will stay as wild as the animal on it:
🔄 Wash and dry inside out — always. No exceptions. Your future self will thank you.
🌊 Cold water only — use a mild detergent and keep it cool. Your shirt isn't a hot tub person.
🌀 Skip the heavy spin cycles — easy does it. We're not wringing out a wet gorilla here.
💨 Air dry when you can — if you must tumble dry, keep it away from heavy fabrics. Your tee is delicate like that.
🔥 Iron inside out on low heat — and never directly over the print. The gorilla doesn't like being ironed in the face.
Take care of your shirt and it'll take care of your morning vibe for a long time. 🦍☕

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