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All-summer comfort
Designed to dry quickly and not cling, this top is ready for everything from warm-to-hot conditions, humid training runs, and endurance pursuits

Cling-resistant fit
Helio is made from a special 3-dimensional knit that raises it off the skin to prevent it from clinging when sweaty

Quick-dry to its core
Excellent moisture dispersal for sweat-wicking performance

Unhindered movement
Raglan sleeve design combined with flatlock seaming and minimal neckline prevent chafing for comfort through high-output movement

Stink-free bliss
HeiQ® Fresh odor control treatment keeps you smelling fresh through all-day adventures

Hang it up
An ultralight nylon hang loop is integrated into the back neck for easy hanging

Stay seen
Janji signature reflective logo on front chest + “watermark” reflectivity on back increase visibility in low light

Helio Tech
100% polyester

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 in under four years. Conventional polyester takes 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.

Biodegradable
Runterra Bio is powered by a specially formulated 37.5® polyester with enhanced biodegradation to break down into bio-based compounds in under 4 years in an oxygen-poor environment like a landfill

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

Everyday looks
Easy to wear, casual cut with a straight hemline

Active comfort
Blended with 37.5® polyester, a special technology utilizing the natural benefits of microscopic volcanic ash to provide enhanced thermal, vapor + odor regulation to maintain body comfort during activity

Wear more, wash less
The natural odor resistance of cotton is boosted by the volcanic particles which "trap" odors so you can put this top through repeated wear

Modified raglan design
Shoulder seams are rolled back off the top of the shoulders for ergonomic comfort

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

Shrinkage is natural
This top is made from 70% natural fibers and is not pre-shrunk so some shrinkage may occur, up to half a size