Contact

Free shipping over 70€ | 100-day return policy

Nur noch heute
Kaufe 3 für 2 - Bekomme ein Teil GRATIS!
Lege 3 Teile in den Warenkorb und bezahle nur 2 davon. Nutze an der Kasse den Rabattcode: GESCHENK

If you would like to return or exchange an item, please register your return yourself via our returns portal .

For all other inquiries, please use the contact form below. We will get back to you via email within 24 hours.

If you have urgent questions, you can also reach us by phone at +49 5121 3033058. Please note our business hours:

Mon-Thu: 9:00 am to 6:00 pm
Fri: 9:00 a.m. to 2:00 p.m.

Our contribution to sustainability

We collect 1kg of plastic per garment sold

In cooperation with our partner Plastic Fischer, we clean rivers and collect 1kg of plastic for every sale.

Wood fiber production requires 95% less water

A regular shirt requires approximately 5,000 liters of water during its manufacturing process. We only use 5% of that.

Wood fiber production emits 50% less CO2

Wood fibers are produced using renewable energy. This production process is low in pollutants and environmentally friendly.

frequently asked Questions

What are wood fibers?

What are wood fibers?
Wood fibers such as Modal or Lyocell are obtained from sustainable wood, such as beech or eucalyptus. They are as soft as silk, significantly more breathable than performance fabrics, and naturally biodegradable.

How are wood fibers produced?
In a closed-loop process, pulp is extracted from wood and processed into fine fibers – with virtually no waste, using recycled water, and without microplastics. Sustainable from source to shirt.

What are the advantages of wood fibers over polyester?
Polyester is plastic – it traps heat and moisture, retains odor, and feels artificial. Wood fibers, on the other hand, are cooling, odorless, and pleasant on the skin. They wick away moisture effectively and dry in a flash. Noticeably better – all day long.

What are the advantages of wood fibers over cotton?
Wood fibers are lighter, softer, and dry faster than cotton. They also use significantly less water in production, thus protecting the environment.

How do I contact customer service?

For returns/exchanges please use our returns portal.

For all other inquiries, please use our contact form. We will get back to you via email within 24 hours.

For urgent matters, you can also reach us by phone at 05121 3033058 during our business hours (Mon-Thurs 9:00-18:00, Fri+Sat 9:00-14:00).

What size do I need?

Simply use the Fit Quiz on the product page, answer a few short questions and our AI will recommend the perfect size for you.

When will I receive my order?

If you order before 4 p.m., your package will be shipped the same day and will reach you within 2-3 working days.

All orders placed after 4pm will be processed the next business day.

For orders outside Germany we need 4-8 working days.

Can I return items if I don't like them?

Yes, we offer a 100-day money-back guarantee. No questions asked.

Try on all the products at your leisure and keep only the ones you like best.

You can return or exchange any item free of charge up to 100 days after purchase.

Simply send us a short message to retoure@serinosports.com – we will personally take care of your request and send you your return label within 24 hours.

When will I get my money back?

Once your return has arrived at our warehouse and been inspected, you will receive a return confirmation via email. Depending on your payment provider, it may take up to 10-12 business days for the money to be credited back to your account.