The Heartwood Tank
β β β β β 4.8 Β· 56 reviewsA square neck does one thing well.
It frames the collarbone and leaves the rest alone. Black, white or pink.
Square neck. Nothing synthetic.
Tags on. 30 days. Courier pickup at our cost.
A square neck does one thing well. It frames the collarbone and leaves the rest alone. Close enough to train in, clean enough to keep on for the rest of the day.
Black, white or pink. Black for the days you want to be left alone. White for the days you want the light. Pink for the days you want to be asked.
Read the label on what you are wearing now. Then read this one: 93 to 95% eucalyptus plant fibre, 5 to 7% elastane, zero polyester, zero nylon. A tank sits against more skin, for more hours, than almost anything you own. That is the reason to get its fabric right.
Why it stays comfortable. Synthetics warm up with your body and hold the heat. Eucalyptus plant fibre lets it go, and moves moisture off your skin instead of keeping it there.
Worn as a pair. With The Heartwood Flare it is The Heartwood Tank Set, βΉ8,999. Bought separately, βΉ9,998. Each piece sized on its own.
Try it for 30 days. If it is not the softest thing you own, full refund and a courier picks it up from your door. Tags on, that is all we ask.
Material: 93 to 95% eucalyptus plant fibre. 5 to 7% elastane for stretch and recovery. Zero polyester, zero nylon. European pulp, made in India.
Care: Machine wash cold, gentle. Hang dry. The fabric softens with each wash.
Most activewear starts in a refinery. This starts as a tree.
Wear it 30 days. Not the softest thing you own? Full refund, we collect it. Tags on.
"I started WEARTH because I was tired of activewear that was just plastic against the skin. Everything we make begins as a tree. If it does not feel like the softest thing you own, send it back and I will refund you myself."
β Shai, founder
Questions about this piece
What is this fabric made of?
Made from up to 95% eucalyptus plant fibre, with up to 7% elastane added for stretch and recovery. Exact composition for this piece is listed in the product description above.
Does the fabric contain polyester or nylon?
No. The fabric itself contains zero polyester and zero nylon. (This covers the fabric only β we have not separately verified the composition of stitching thread or trims, so we are not making a claim about those here.)
How do I pick my size?
Use the size chart on this page before you order β it maps body measurements to our sizes so you can choose with confidence.
What if it does not fit or feel right?
Wear it for 30 days, tags on. If it is not the softest thing you own, you get a full refund and we arrange a free courier pickup from your door.
What are the shipping and payment options?
Free shipping across India on every order. Prepaid checkout only.
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“Once I tried this fabric, I couldn't explain it. Your skin just knows.”
- Alisha
“Once I tried this fabric, I couldn't explain it. Your skin just knows.”
- Arjun
“I have stopped wearing polyester completely. The fabric lives with you, not against you.”
- Rhea
“We keep bumping into each other in WEARTH. That says everything.”
- Nidhi
“Wearth has replaced all my activewear. I literally live in them now.”
- Meera
“I have stopped wearing polyester completely. The fabric lives with you, not against you.”
- Abi
“Fits perfectly. The material is something else.”
- Priya
“We keep bumping into each other in WEARTH. That says everything.”
- Karan
“I wore these on a 14-hour flight. Landed feeling human.”
- Kavya
“Once I tried this fabric, I couldn't explain it. Your skin just knows.”
- Alisha
“I have stopped wearing polyester completely. The fabric lives with you, not against you.”
- Rhea
“We keep bumping into each other in WEARTH. That says everything.”
- Nidhi
“The fabric is unlike anything I've worn. You feel it the moment you put it on.”
- D.M.
“Wearth has replaced all my activewear. I literally live in them now.”
- Manish
“Wearth has replaced all my activewear. I literally live in them now.”
- Meera
“Fits perfectly. The material is something else.”
- Priya
“I wore these on a 14-hour flight. Landed feeling human.”
- Kavya













