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Cold Wave Kathi

Cold Wave Kathi

  • 65% ZQ Fine Merino - Ultra-fine fiber (≈15.5 micron), very soft against skin, Natural thermoregulation, Excellent moisture management, Naturally odor resistant & antibacterial, garments keep shape.
  • 25% Brushtail Possum Down - lightest hollow fibers in the world (≈16 micron), Exceptional thermal insulation, Very low density, Adds loft and softness.
  • 10% Mulberry Silk - Extremely smooth and luxurious hand feel (≈11 micron), Adds natural sheen and drape, High tensile strength, Enhances moisture balance and breathability.
Starting from
$1,780.00 USD
$1,780.00 USD
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Taxes included. Shipping calculated at checkout.
Size

100%
Regenerative
Yarns

One-Piece
Seamless
Technology

Low
Carbon
Footprint

Crafted
to Order

Fit: Relax 
Sleeves: Full Sleeves 
Neck: Round Neck Jumper
Style: Reglan
RIB Details: 2x2 Rib Hem, Cuff and Neck
Gauge: 14  
Model Height: 6’0 
Made in India  
Product Code: BTM20

Blend Performance

  • Ultra-light yet very warm
  • Silky smooth touch with soft loft
  • Excellent breathability + insulation balance
  • High durability for fine gauge WHOLEGARMENT knitting

Seasonality

Best: All-Season Luxury Knit

  • Spring ✔
  • Autumn ✔
  • Mild Winter ✔
  • Air-conditioned Summer ✔

This blend offers the best year-round wearability

  • 65% ZQ Fine Merino - Ultra-fine fiber (≈15.5 micron), very soft against skin, Natural thermoregulation, Excellent moisture management, Naturally odor resistant & antibacterial, garments keep shape.
  • 25% Brushtail Possum Down - lightest hollow fibers in the world (≈16 micron), Exceptional thermal insulation, Very low density, Adds loft and softness.
  • 10% Mulberry Silk - Extremely smooth and luxurious hand feel (≈11 micron), Adds natural sheen and drape, High tensile strength, Enhances moisture balance and breathability.


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The sweater is made using advanced seamless 3D knitting technology.No side seams or stitching – ensuring a smooth fit that adapts naturally to the body.Reduces irritation and enhances comfort.Precision knitting allows for intricate design details while maintaining structural integrity.Zero cutting or sewing waste, resulting in a cleaner, more refined garment with superior longevity.

Brrotank garments reduce emissions by up to 75% vs. conventional luxury brandsVisual idea: sheep → yarn → one-piece knit → you → back to earth

Zero Waste Production – seamless knitting eliminates fibre scraps, reducing landfill impact.Natural & Biodegradable Fibres – Merino, Possum, and Silk are 100% natural, breaking down without harming the environment.Eco-Friendly Dyeing – made with natural or non-hazardous dyes to minimize water and soil contamination.Ethical Sourcing – ZQ certified Merino guarantees animal welfare, social responsibility, and environmental care.Carbon Impact – Possum fibre is considered a sustainable choice, as it helps control an invasive species while producing an exceptionally warm, lightweight fibre.

  • 🖐️ Hand Wash Preferred
  • 🌀 Machine Wash (if needed)
  • 🧴 No Harsh Additives
  • 🪵 Dry It Flat
  • 🧳 Store with Care
  • ♻️ Minimal Washing, Maximum Longevity

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Engineered by Nature, Perfected by Brrotank

Our ZQ-certified Merino wool is ultra-fine at just 19.5 microns-light on the skin but made to endure. Spun in Italy and fortified with our proprietary Eternity X-Care® finish, it’s elegance crafted to stand the test of time.

Hot or cold, indoors or out-this wool adapts. The natural crimp of Merino creates breathable air pockets that trap warmth or release it as needed. It's nature’s way of regulating temperature-no adjustment required.

Naturally antibacterial by design, our wool inhibits odour and resists bacteria build-up. That means fewer washes, longer life, and an easier relationship with your wardrobe.

Brrotank Merino absorbs up to 30% of its own weight in moisture while staying dry to the touch. Whether you’re layering up or moving through climates, it keeps you dry, fresh, and comfortable.

Crafted using advanced seamless knitting technology, each Brrotank garment is made in a single flow - no stitching, no panels, no waste. It’s not assembled, it’s engineered. The result? Smoother fit, longer durability, and a garment as pure as the yarn it’s made from.

Certifications That Matter Certifications That Matter
Engineered by Nature, Perfected by Brrotank
Have a look at our product features
🔄One-Piece Seamless Innovation
🔄One-Piece Seamless Innovation
No Seams. No Waste. Just Perfection
Our garments are crafted using world-class seamless knitting technology-knit in one single piece, with no joins, no panels, and no stitching.
♻️ Wool That Gives Back
♻️ Wool That Gives Back
Cashmere. Merino. Possum Down. Nature’s Best-Kindly Sourced.
We use only ethically sourced, regenerative yarns. Our Merino is ZQ-certified, our Cashmere is cruelty-free, and our Possum Down helps restore ecological balance. Every fibre supports biodiversity and sustainable ecosystems.
🌍 Verified Carbon Transparency
🌍 Verified Carbon Transparency
We Measure What We Make.
Every Brrotank garment undergoes a Lifecycle Analysis (LCA) by a third-party auditor to assess its carbon footprint. We’re not just reducing impact-we’re proving it.
🌿 Second Skin Comfort
🌿 Second Skin Comfort
Luxury You Can Live In.
Our natural yarns breathe, stretch, insulate, and adapt to your body. Ultra-soft yet durable, they wick away moisture, resist odour, and feel like a second skin-season after season.

Frequently asked questions

Our garments are crafted using advanced 3D-knitting machines that produce a single, continuous piece-no seams, no stitches. This ensures unmatched comfort, fit, and durability.

We use ultra-premium blends like Cashmere, Brushtail Possum Down, Bactrian Camel Hair, ZQ-certified Merino Wool, and Mulberry Silk. Each fibre is chosen for its softness, strength, warmth, and breathability.

From regenerative farming to made-to-order production, we ensure low environmental impact. Our carbon footprint is minimized through zero-waste garment construction and traceable sourcing.

We offer a Care Support Promise: If your knitwear needs mending or shape restoration, send it to us. We’ll try our best to restore it-supporting long-term ownership and low-impact fashion.

Each garment is made-to-order. Please allow 10–12 business days for crafting, followed by 3–5 business days for delivery.

Hand wash with cold water using mild detergent. Do not wring. Lay flat to dry in shade. For detailed care, refer to the wash label on your garment.

Yes. Every Brrotank piece is available in standard sizes (XS–XXL) and custom-fit options tailored just for you.