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This product:

COLLECTION
HOKKAIDO COLLECTION MARTINIQUE COLLECTION CHILE COLLECTION JAVA COLLECTION AMERICAN SOUTHWEST CHENNAI COLLECTION

ARTIST COLLAB(S)
Kohei Fujito, Keiko Yanagisawa, NISSACO Justine Fédronic Yaikel, Tomás Ives SONI IRAWAN, ARWIN HIDAYAT CHRISTIAN GERING KASHMIRA BAHETI

REGION
HOKKAIDO, JAPAN MARTINIQUE CHILE JAVA, INDONESIA AMERICAN SOUTHWEST CHENNAI, INDIA

WATER PARTNER
TO BE ANNOUNCED GLOBAL WATER PARTNERSHIP CARIBBEAN FUNDACION AMULEN GREENERATION DIGDEEP ENVIRONMENTALIST FOUNDATION OF INDIA

Each Janji collection is inspired by a different part of the world where we collaborate with local artists on our prints + graphics.

2% of all collection sales are donated at the end of the season to our clean water partner to give back to the region that informed the designs.


Made to run everywhere + purpose-built for the path ahead

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La Sportiva x Janji

Exclusively at REI

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Gear Bag
run everywhere
guarantee
free shipping on
orders over $55
free 60 day exchanges
+ no-fuss returns

Helio Tech Tank

Helio Tech Tank

Cling-free, ultra fast-drying comfort for the warmest conditions

COLOR >>  
M's Helio Tech Tank
size >>

Hurry, only 1 left in stock!

Size Guide

THIS PRODUCT IS ONLY AVAILABLE TO JANJI COLLECTIVE MEMBERS

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JOIN JANJI COLLECTIVE

THIS PRODUCT IS ONLY AVAILABLE TO JANJI COLLECTIVE MEMBERS

Join now to unlock access

JOIN JANJI COLLECTIVE
run everywhere guarantee
free shipping over $55
free 60 day exchanges
Slim fit, Size Chart William is 6'1" and wears size M

Backed by our 5-year Guarantee

We make gear that lasts. If your Janji gear doesn't due to any defect in workmanship or material, we promise to repair it, replace it, or give you store credit for it. Learn more

Artist Series Kits - Janji x Arwin

Each Janji collection is inspired by a region around the world where we collaborate with local artists. This print is designed by the Indonesian batik artist Arwin Hidayat for our Java collection.

2% for clean water

2% from this purchase will be donated to support clean water projects in the places that inspire us. Learn more

Your hottest runs have finally met their match — ultra-light and super fast-drying, the Helio Tech Tank has a textured interior so it stays cling-free and comfortable, even on your sweatiest adventures.

Explore more
↓

features

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

materials + specs

Helio Tech
100% polyester with HeiQ® Fresh treatment

Garment made in Vietnam
72g / 2.5oz (W’s Small)

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Janji Collective Membership

$25

Key member benefits:
- 15% lifetime discount.
- Priority access to all releases.
- Limited run Janji gear.

Janji Collective Membership

Key member benefits:

- 15% lifetime discount.

- Priority access to all releases.

- Limited run Janji gear.

Please enter the gift recipient's contact info

The $25 membership fee goes toward supporting clean water initiatives through our clean water partner

Learn more here

Customer Reviews

Based on 23 reviews
65%
(15)
22%
(5)
9%
(2)
4%
(1)
0%
(0)
B
BM
Wear it for: Running
Product Fit: Spot-on
Height: 5'10" to 6'0"
Usual Size: L
Size Purchased: L

M's Helio Tech Tank

T
Ty R.
Wear it for: Running
Product Fit: Spot-on
Height: 5'4" to 5'6"
Usual Size: S
Size Purchased: S
Beat tank for running!!

The Helio Tech Tank has become my go to running tank, period! I’ve tried numerous brands and this one fits great, absorbs moisture the best, and keeps me cool in this humid Atlanta climate. I’ve already ordered two more just so I have one on hand for the next run. Can’t wait for new colors!!

G
Gregory C.
Wear it for: Running, Hiking
Product Fit: Spot-on
Height: 5'4" to 5'6"
Usual Size: S
Size Purchased: S
The best shirt I've ever worn running

Please make these available in more colors. The fit and feel is perfect, but the color selection is unusual and limited.

N
Neil M.
Wear it for: Running
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: M
Size Purchased: M
Great Product

Works great to keep me cool in hot and humid conditions.

L
Lisa A.
Wear it for: Running
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: S
Size Purchased: S
Slim and Stylish

This top really checks all the boxes. I don't like my exercise clothes loose and baggy so this trim sleeveless tank is great. Love the cool print too.

D
Dirk P.
Wear it for: Running
Product Fit: Spot-on
Height: 5'10" to 6'0"
Usual Size: S
Size Purchased: S

M's Helio Tech Tank

N
Nate R.
Wear it for: Running
Product Fit: Spot-on
Height: 6'0" to 6'2"
Usual Size: M
Size Purchased: M

M's Helio Tech Tank

L
Lin
Wear it for: Running
Product Fit: Spot-on
Height: 5'4" to 5'6"
Usual Size: S
Size Purchased: S
Love the design, but it cannot beat Texas heat

Very comfortable. My small is not too tight or loose. And the length is also great. But 92 degree with 55% humidity run still drenched it. It does have a texture inside, which explains that the back of the singlet could still hang loosely even the front part just clings to the skin, after 4 mile run.

Highly recommend, but don't expect a complete dry experience in humid and hot climate.

C
Chuck C.
Wear it for: Running, Cycling
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: S
Size Purchased: S
Comfortable and cool...

I purchased the very colorful tank not the green one I am seeing. But very impressed with the tank!

B
Benjamin b.
Wear it for: Running, Hiking
Product Fit: Spot-on
Height: 5'10" to 6'0"
Usual Size: M
Size Purchased: M
high & dry

had a little adventure in postholing up to my stomach doing some early season running in Montana while wearing this shirt and it dried out very quickly despite being mostly soaked afterwards. it was delightfully comfortable for all 20 km and didn't bunch weirdly under my running vest like some shirts. I would definitely recommend it on warm mountain days.

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