UnDeR20 × TIANYU2FM Complex World Soundwave T-shirt


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Hello! This is Tianyu and Tianyu from TIANYU2FM!" TIANYU2FM is a podcast program founded by the partners Tianyu and Tianyu of UnDeR20, and we are about to welcome our 100th episode. Over the past four years, we have dialogued with pioneers and scholars from various fields, constantly exploring unknown territories of knowledge and insight.

This is our first merchandise, co-designed by Tianyu and Tianyu, and produced under the supervision of TenGuSan. The colors are inspired by the TIANYU2FM logo's color scheme. The red enhances whiteness, and black is slimming! We've centered our design around the podcast's defining feature—sound—and depicted it on both the front and back of the shirt. The phrases "I love talking to this complicated world" and "resonate with the world" not only reflect our content creation experiences but also our insights and aspirations.

We've recorded these phrases being spoken aloud and transformed them into a visual soundwave representation. This design process captures our dialogues and, by extension, the complexity of the world and individuals. This visual transformation from auditory perception to visual design aims to accompany you in finding resonance with others and the world around you.

Product Specifications

  • 285gsm brushed cotton.
  • Screen printing process for vibrant and long-lasting color fidelity.
  • Pre-washed and preshrunk, ensuring the garment meets the highest standards with minimal shrinkage.
  • Boxy fit style, reflecting a relaxed and modern aesthetic.


  • Male Model is 184 cm / 6’ 1’‘ | 74 kg / 163 lbs wearing size XL
  • Female Model is 168 cm / 5’ 6’’ | 44 kg / 97 lbs wearing size S

Shipping & Taxes

For US Customers: Tax-Free | Duty Fees May Be Assessed For Orders Over $800

For International Customers | Duties And Import Taxes May Be Collected Upon Delivery

UnDeR20 × TIANYU2FM Complex World Soundwave T-shirt


UnDeR20 Story

UnDeR20 was founded on January 23, 2021 by the artist, TenGuSan. Since its establishment, we have been dedicated to the design and release of original toys, which have been widely recognized across Asia, in particular, Japan and China. In 2023, we started our own clothing and accessories lines because we felt that we couldn't find clothes that truly excited us anymore. So we are going to create them ourselves.

From toys to streetwear, just like our name suggests, we have always been "under 20 years old." We uphold our slogan, "Wandering Soul, Untamed Heart." We gather artists from around the world and always stand with the "wildest" young people. A revolution without dancing is a revolution not worth having, right?


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