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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

Ready for all-day-adventures or repeat sessions, the Janji Repeat Merino Tech Tee is made from a light-yet-mighty odor-resistant merino blend that's as soft as it is strong, designed to be fresh and comfy when you reach for it, again and again.

A Higher Standard
Responsible Wool Standard certified merino ensures traceable, non-mulesed wool and best practices are met from farm through production

The power of merino
17.5 micron merino is ultra-fine for super soft, comfortable feel, and is naturally thermoregulating, odor-resistant, and wicks sweat and moisture

Comfort from volcanic ash
Keeps you from getting too warm or too chilly — 37.5 Technologies® nylon with volcanic ash enhances thermoregulation and anti-stink properties

Put it on repeat
External back locker loop allows for hang drying and re-wearing to reduce water consumption

Multipurpose comfort
Layer under a long sleeve top on chilly days or on its own as it warms up 

Repeat Merino
47% 17.5μ merino wool, 38% 37.5® nylon, 15% nylon
Made with natural fiber, this item may shrink slightly on first wash

Cross-functional versatility
From running to swimming, from the city to the trail, Transit Tech transitions effortlessly between activities + environments to help you move more freely throughout the day

All conditions comfort
Lightweight, breathable + wind resistant Transit Tech soft-shell fabric maintains next-to-skin comfort in variable conditions

Sans liner
Linerless construction provides unbounded comfort

Adjustable waistband
Minimal elastic waistband with internal drawcord ensures quick adjustment 

Don’t sweat it
Double-weave interior facing “loopers” prevent the fabric from sticking to sweaty skin

Durable water repellency
C6 short-chain DWR provides long-lasting, fast-drying, weather resistance

Unhindered movement
Side notch allows for increased mobility

Everyday carry capacity
Large zip hand pockets with an integrated key loop bungee + Nite Ize S-Biner MicroLock® clip included

Bounce-free back pocket
Back zip pocket can fit most phone sizes + minimizes bounce

Transit Tech w/ C6 DWR finish
91% recycled polyester, 9% elastane

A Higher Standard
Responsible Wool Standard certified merino ensures traceable, non-mulesed wool and best practices are met from farm through production

The power of merino
17.5-micron merino is ultra-fine for a super soft, comfortable feel, and is naturally thermoregulating, odor-resistant, and wicks sweat and moisture

Comfort from volcanic ash
Keeps you from getting too warm or too chilly — 37.5 Technologies® nylon with volcanic ash enhances thermoregulation and anti-stink properties 

Put it on repeat
The external back locker loop allows for hang drying and re-wearing to reduce water consumption

Multipurpose comfort
Layer under a long sleeve top on chilly days or on its own as it warms up

Repeat Merino
47% 17.5μ merino wool, 38% 37.5® nylon, 15% nylon
Made with natural fiber, this item may shrink slightly on first wash

All about the Groundwork
Breathable, moisture-wicking fabric provides light compression with an unnoticeable feel in stride

Stays put
Silicone grippers on the hem prevent the fabric from riding up + keep the short in place during high-output movement

Unfussy + secure fit
Ergonomic waistband design contours the hips for optimal comfort in stride while power mesh lining offers secure support

Infinity drawcord
Allows for an adaptable fit + will not get tugged out in the wash

Pocket it
Two deep side pockets can easily accommodate the largest phone sizes (plus case) + minimize any movement or bounce

Keep it separated
An internal waistband pocket can stash card/cash or key

Back pocket duals as pass-thru
A back pocket can be used to store nutrition or as a pass-thru to secure a top or lightweight layer

Stay seen
Janji signature blue reflective logo on front and “watermark” on back increases visibility in low light

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

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 hem + “watermark” reflectivity on back increase visibility in low light

Helio Tech
100% polyester with HeiQ® Fresh treatment