Heat Reactive Bandana

Delivery within 3 - 8 business days in Europe

Our shipping partners are DHL, DPD & UPS.

Germany: 2-4 business days

Europe: 3-8 business days

Global: 7-14 business days

For express delivery please choose UPS Express at checkout or contact service@arysstore.com.

Free shipping & returns for orders over 250€ (EU)

We offer free shipping for orders over €100,- (Germany)/ €250,- (EU)/ €500,- (UK & Switzerland) / €750,- (Global).

Returns are free of charge within Germany / EU.

30 days return policy

Our return policy is 30 days for an exchange or refund.

Shipping to USA, UK, Switzerland & other Non-EU countries

Customers from Non-EU countries pay only the net price (excl. 19% German VAT).

Please note, customs and import duties may apply for which the ARYS Store is not responsible.

Help and contact

You have questions about a product? Then write an e-mail to service@arysstore.com or call us during our business hours:
+49 (0)30 48491489

Mon 11 - 19 h
Tue closed
Wed - Sat 11 - 19 h

The GEEK OUT STORE HEAT REACTIVE BANDANA has been printed with original thermo ink. It's a bandana that changes color depending on the temperature. The color changes around 30 °C. You can enjoy the color change by wrapping it over the mask.

features & functionality

  • heat reactive bandana
  • changing color thermo ink
  • Geek Out logo in corner
  • unisex
  • made in Japan


  • 100% Cotton

care instructions

  • hand wash only
  • do not bleach
  • do not iron
  • do not tumble dry

size & fit

  • 53cm × 53cm


GEEK OUT STORE is more than just a Tokyo-based vintage shop founded by Naoki Wada; it's a humble meeting place for anyone interested in fashion, music or art, a communal centre for co-creating and "geeking out" on vintage functional clothing. A shop that occasionally sells incredibly rare and coveted vintage clothing from its archive, hosts pop-ups with friends and most importantly also acts as a laboratory to co-create cool things. It is from this laboratory that the new creation of the heat reactive bandana is coming from.

The ARYS Store stands for functional, timeless products for urban everyday life. We curate a wide range of brands that offer innovative solutions in the fields of fashion and lifestyle. With us you will find brands from all over the world who think far from the norm in their field and thus create unique products. We want to win the hearts of a generation that values sustainable mobility and regular time out in nature - without compromising on design.

Visit us in Berlin, Kollwitzstraße 51