AER Relaxed Tencel T-Shirt

€85,00
Size
Color: Midnight Black
Certified Clean Botanic Fiber
Free Worldwide Exchanges
Performance Guarantee
Description

A refined natural essential for everyday movement.

Light, cooling and soft as a second skin — the AER T-shirt moves with you from morning runs to studio sessions to wherever the day takes you. Effortlessly versatile, refined enough to wear anywhere.

Crafted from 100% eucalyptus-based botanical fibers down to the thread, it stays naturally fresh through multiple wears — even back-to-back training sessions. No wonder it's a go-to for professional trainers who can't afford to stop and change mid-day.

Free from harmful substances including PFAS, BPAs and microplastics, and OEKO-TEX® Standard 100 certified — so that every movement is as good for your body as it feels on your skin. Responsibly made in Portugal.
Fit & Sizing

Model is wearing size S in black and eucalyptus green.
Height: 172cm / 5′6″
Chest: 86cm / 33.9"
Waist : 69cm / 27"

To ensure perfect fit, please measure yourself by using our sizing guide HERE. Please contact us at care@tripulse.co if you need help with finding your right size.

If you are between sizes, we recommend choosing your regular size, and sizing up if you prefer a more relaxed fit.
Material & Certifications

Material Composition

  • 100% TENCEL™ Lyocell sustainably sourced wood fiber certified by Lenzing, including the sewing thread

Material certifications

  • OEKO-TEX® Standard 100: Tested and certified free from over 1000 harmful substances including PFAS, BPAs, formaldehyde and other endocrine disruptors
  • REACH Compliant: Meets EU's strictest chemical safety regulations
  • TENCEL™ Lyocell includes EU Ecolabel, FSC®, and PEFC™ certifications
  • Climate Neutral Certified by NGO Change Climate

Manufacturing

Responsibly made in Portugal (EU) in our GOTS-certified partner facility
Product Care

Extend your clothing's lifecycle by looking after them with care.

  • Machine-wash gently at 30°C/86°F, or wash by hand
  • Don’t bleach
  • Hang to dry, don’t tumble-dry
  • We recommend to air-dry instead of washing it after every use
  • Use mild detergent and no fabric softener (we recommend choosing environmentally - & health friendly detergents)
  • The shirt can shrink up to 5% after the first wash due to its natural origin (Note that we considered this shrinkage in our sizing guide. So when you feel that the shirt is a bit too long when trying it on for the first time, please consider it may shrink up to 5% after your first wash.)

Other care tips

  • Wash less: Our unique fabric requires less washing due to its natural bacteria- and odor-inhibiting properties.
  • "End of life" and disposal tips: If it is still in good shape - swap with friends, resell as second-hand, repair or bring to your local tailor for repair. If it is very worn out and can no longer be used, best to bring it to a local textile collection or recycling station. It can even be composted, but make sure you understand how to compost in the right way. 
  • Learn more how you can extend your TENCEL™ garment's lifespan here
Shipping & Returns

We offer worldwide shipping and free exchanges. Learn more about your country's Shipping & Delivery.

We offer a 30 day return period, and a Performance Guarantee. Learn more about our Returns, Exchanges and Guarantee.
Pair it with
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Moonstone Grey Terra Brown Midnight Navy Midnight Black Savannah Khaki + 2 more

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Original Tencel Shorts with Side Pockets
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View details

"Love this shirt! I wear it to the gym, for runs, casually, and even at work—it just works everywhere"

Lena F

Natural Performance Redefined

Made from 100% botanical fibers (to the thread) chosen for how they feel on your skin and move with your body.

Certified Clean, Kind to Skin

Every fabric, dye, and finish is independently tested, including OEKO-TEX® certified, to meet the highest safety standards — so nothing touches your skin that hasn’t earned it.

Scandinavian Born, Crafted in Portugal

Meticulously designed for function, versatility, and comfort — thoughtfully made in Europe with a commitment to responsible production.

FAQ

How do I choose the right size?

Our Size Concierge is here to help.

Check our Sizing Guide . If still unsure, email us your measurements for personalized recommendations via care@tripulse.co :

  • Bottoms: waist & hip
  • Bras: chest & underbust
  • Tops: chest & waist

We'll reply within 24 hours (Mon–Fri) to help you find your ideal fit.
Is your activewear toxin-free, including free from PFAS and BPAs?

Yes. Every material is chosen to be safe for skin-close wear.

Our non-toxic activewear is OEKO-TEX® certified and independently tested – free from PFAS, BPA, phthalates, and other harmful substances. We also follow strict EU REACH safety standards.

What you wear daily should support your wellness, not work against it.
Is your activewear 100% plastic-free?

We use clean natural fibers wherever possible. Our tops are made entirely from TENCEL™ Lyocell, even down to the thread.

For our leggings and bras, we add a touch of ROICA® stretch – a far healthier alternative to conventional elastane.

You won't find polyester or nylon in our fabrics. Ever.

Learn more in our guide to natural activewear and stretch.
What is TENCEL Lyocell?

TENCEL™ Lyocell is a natural fiber derived from pure eucalyptus.

Most activewear is built around plastic and chemicals. We think your body deserves more than that.

TENCEL™ is one of the healthiest, most sustainable, and high-performing natural fibers available. It’s plastic-free, toxin-free, and genuinely better for your skin. That’s why we’ve built Tripulse around it.

Explore our full guide to TENCEL™ Lyocell.