Yes. The HeatLock™ thermal technology and fleece-lined interior are designed to retain body heat, making it perfect for harsh winters and cold climates.
Fab Alchemy
FabVest™ HeatLock Winter Tank (Free Size)
FabVest™ HeatLock Winter Tank (Free Size)
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Meet the FabVest™ HeatLock Winter Tank — a next-generation thermal layer engineered to keep you warm, shaped, and stylish throughout the cold season.

With advanced HeatLock insulation, a silky fleece-lined interior, and a sleek slimming silhouette, this winter tank top delivers powerful warmth without adding any extra bulk.
Designed for modern women who want comfort + confidence in every outfit, this vest feels soft against the skin, stretches beautifully, and stays invisible under clothing.
Why You’ll Love FabVest™ HeatLock Winter Tank
HeatLock™ Thermal Technology - Locks in body heat while maintaining airflow — perfect for winter mornings, travel, and chilly indoor spaces.
Slim-Fit, Body-Shaping Design - Contours and smooths your silhouette while staying completely hidden under tops, kurtis, sweaters, and jackets.
Plush Fleece-Lined Interior - Ultra-soft velvet fleece keeps you warm instantly, without any heaviness or irritation.

Soft, Stretchy & Breathable Fabric
Moves with your body comfortably. No tightness. No restriction.
Free Size crafted to fit S to XL beautifully.
Multi-Wear Styling Use it as:
- A thermal winter tank
- A base-layer vest
- A slim-fit inner-wear top
- Warm inner for western & Indian outfits
- Lightweight body shaper for winter layers
Designed for Daily Comfort
Lightweight, warm, and gentle on skin — ideal for long hours, office wear, travel, and daily winter dressing.
Key Features
- HeatLock™ thermal insulation
- Velvet-soft fleece inner lining
- Slim-fit, body-shaping silhouette
- Ultra-stretch, breathable fabric
- Lightweight winter essential
- Sleeveless tank for easy layering
- Woolen thermal feel without weight
- Free size (fits S to XL)
- Perfect for cold weather & layering under outfits
Perfect For
✔ Harsh winters & cold climates
✔ Office & daily wear
✔ Under sweaters, hoodies, jackets & kurtis
✔ Travel and outdoor activities
✔ Anyone who wants warmth + a slimmer silhouette
What’s Included
1 × FabVest™ HeatLock Winter Tank (Free Size)
FAQs – FabVest™ HeatLock Winter Tank
Is FabVest™ HeatLock Winter Tank suitable for extreme cold?
What sizes does it fit?
FabVest™ comes in Free Size, designed to fit S to XL comfortably due to its ultra-stretch, body-hugging fabric.
Can I wear it under tight clothing?
Yes, it has a smooth, slim-fit silhouette that stays invisible under kurtis, tops, sweaters, and jackets.
Does the fabric irritate the skin?
No. It is made with soft, breathable, skin-friendly velvet fleece that will not itch or irritate.
Is it stretchable?
Yes! The material is super-stretchy and adapts to your natural body shape without restricting movement.
Is it washable?
Yes. Hand-wash or machine-wash on gentle cycle. Avoid wringing and harsh sunlight.

Limited Stock - Will Sell Out Fast!
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