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Men's Janji Runterra Bio Long Sleeve
Men's Janji Runterra Bio Long Sleeve
Men's Janji Runterra Bio Long Sleeve
Men's Janji Runterra Bio Long Sleeve
Men's Janji Runterra Bio Long Sleeve
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Men's Janji Runterra Bio Long Sleeve

  • -$-64.00
  • Regular price $64.00
    Shipping calculated at checkout.

    Run in it, sweat in it, live in it — then biodegrade it!

    The first synthetic-blend running shirt that biodegrades like a 100% cotton tee, our Runterra Bio offers the enhanced moisture and odor control of specially-formulated 37.5® polyester with the comfort and versatility of cotton. This new, innovative fabric breaks down into organic compounds significantly faster than conventional polyester which takes over four hundred.

    Don’t sweat it — this tee will only start to biodegrade in anaerobic (oxygen-poor) environments. It breaks down in the landfill, not in your closet.


    Runterra Bio is powered by a specially formulated 37.5® polyester with enhanced biodegradation to break down into bio-based compounds significantly faster than conventional synthetics in an oxygen-poor environment like a landfill

    Premium cotton
    Made from long staple, US-grown Supima® cotton for superior softness, strength + durability

    Active comfort
    37.5® polyester with embedded volcanic ash provides enhanced heat + moisture regulation as well as odor-resistance

    New sport raglan
    Signature raglan sleeve design keeps seams off the top of the shoulders for comfort

    Hang it up
    An elastic locker loop is integrated into the back neck tape


    Why do biodegradable synthetics matter? 

    While we design Janji gear to last and hold up to the demand of years of running, no tee or running shorts should last forever. With this in mind, we are researching innovative ways to improve end-of-life cycle management of our apparel. While we look into longer-term solutions and circular methods — recycle, repurpose and reuse programs — we also know that most textiles are thrown out and end up in landfills. Conventional synthetics, used heavily in active apparel for their high-performance functionality, do not biodegrade in typical landfill conditions. This includes synthetics made from recycled materials, and is why most plastic seemingly lasts forever.

    We are seeking solutions to fix this as a performance apparel company that relies on synthetics, including the use of non-ecotoxic biodegradability within our textiles like this new Runterra Bio. This is the first step on a better path forward.

    Runterra is made from premium, long-staple Supima® cotton which is 50% longer and up to 45% stronger than other cottons (and softer, too). The stronger the fiber, the more durable the garment, and therefore the more it can be worn. Supima® cotton is grown by a select few family farms that utilize advanced water and soil management techniques to reduce consumption and ensure the health of the land for optimal renewability.

    Runterra fabric is also OEKO-TEX® certified, meaning it is free from harmful chemicals and is fabricated in a way that meets a high environmental standard.