M1347 Sport Jacket - Black Oversized Boiled Wool Genuine Leather Inserts Removable Sash Corozo Buttons Double-Slider Zip Women's Italian

Boiled Wool. Genuine Leather Inserts. Removable Sash. Corozo Buttons. The Jacket With Five Premium Details.

The M1347 is an oversized jacket in boiled wool — 60% polyester, 40% wool — fully lined in 100% polyester, with genuine leather inserts (100% leather), a removable sash, a double-slider zip closure, front pockets, and corozo buttons. Five premium details in deliberate combination: the boiled wool creates a dense, structured shell; the genuine leather inserts add a material contrast at specific panels; the removable sash allows the jacket to be worn belted or clean; the double-slider zip allows the jacket to be opened from the top or the bottom; the corozo buttons are carved from vegetable ivory — a natural, sustainable material. Made in Italy by LA HAINE INSIDE US.

Why This Jacket Is Different

• Boiled Wool: 60% polyester, 40% wool — boiled wool is a felted fabric created by washing wool at high temperature, causing the fibres to shrink and interlock into a dense, structured material. The result is a fabric that is warmer, more wind-resistant, and more structured than standard woven wool. The polyester content (60%) adds durability and shape retention to the boiled wool; the wool content (40%) provides natural warmth and the characteristic hand of boiled wool. Unlike standard wool (which is woven and has a visible weave structure), boiled wool has a smooth, dense surface with no visible weave — the fibres interlocked into a solid, structured material.
• Genuine Leather Inserts: 100% genuine leather panels inserted into the boiled wool jacket body — a material contrast between the dense, matte boiled wool and the smooth, slightly reflective leather. The leather inserts are placed at specific panels of the jacket, creating a deliberate material contrast that is visible from the front and the side. Genuine leather (not faux leather) — the natural variation in the leather surface visible in the texture and sheen of each insert.
• Removable Sash: A sash — a wide fabric belt — that can be attached or removed from the jacket. Worn with the sash, the jacket is belted at the waist, creating a defined waist within the oversized silhouette. Worn without the sash, the jacket falls freely in its oversized silhouette. The removable sash creates two distinct silhouettes from a single jacket.
• Corozo Buttons: Buttons carved from corozo — also known as vegetable ivory, the seed of the tagua palm. Corozo is a natural, sustainable material that has been used as a button material since the 19th century as an alternative to ivory. Each corozo button is unique — the natural variation in the seed visible in the surface of each button, the colour and texture varying slightly between buttons. Corozo buttons are warm, organic, and sustainable — a premium hardware detail that contrasts with the boiled wool and leather of the jacket body.
• Double-Slider Zip Closure: A zip with two sliders that can be opened from the top or the bottom — allowing the jacket to be opened at the hem for movement while remaining closed at the chest, or opened at the chest while remaining closed at the hem.
• Front Pockets: Functional front pockets that maintain the jacket's structured silhouette.
• Made in Italy: Boiled wool construction, genuine leather insert finishing, removable sash construction, corozo button attachment, and all finishing completed in Italy under LA HAINE INSIDE US's atelier standards.

Specifications

• Style: Oversized boiled wool jacket with genuine leather inserts and removable sash
• Color: Black
• Shell Material: 60% Polyester, 40% Wool — boiled wool
• Inserts: 100% Genuine Leather
• Lining: 100% Polyester
• Closure: Double-slider zip + corozo buttons
• Features: Boiled wool, genuine leather inserts, removable sash, corozo buttons, double-slider zip, front pockets
• Fit: Oversized / Women's
• Origin: Made in Italy
• Brand: LA HAINE INSIDE US
• Season: AW / Winter

Women's Size Chart

Note: Oversized fit — size down for a more controlled silhouette. The boiled wool is structured and does not stretch; size according to chest measurement.

The Moment You Put It On

The boiled wool is immediately dense and structured — the felted surface smooth and precise, the 40% wool content warm against the body. The genuine leather inserts are visible at the panels: smooth, slightly reflective, the natural variation in the leather surface visible in the texture and sheen. The corozo buttons close with a warm, organic click — each button unique, the natural variation in the vegetable ivory visible in the surface.

Attach the sash and the oversized jacket is belted at the waist — the removable sash creating a defined waist within the oversized silhouette, the boiled wool and leather visible above and below the belt. Remove the sash and the jacket falls freely in its oversized silhouette. The double-slider zip allows the hem to be opened for movement while the chest remains closed. The M1347 is a jacket with five premium details — each one considered, each one functional.

The Art of Boiled Wool

Boiled wool is a felted fabric created by washing wool at high temperature — the heat causes the wool fibres to shrink and interlock, creating a dense, structured material with no visible weave. The felting process creates a fabric that is warmer, more wind-resistant, and more structured than standard woven wool — the interlocked fibres creating a surface that resists wind and moisture more effectively than an open weave. In the M1347, the boiled wool is 60% polyester, 40% wool — the polyester content adding durability and shape retention to the boiled wool, the wool content providing natural warmth and the characteristic hand of boiled wool. The smooth, dense surface of the boiled wool creates a clean, structured shell that amplifies the genuine leather inserts and corozo buttons — the matte boiled wool surface contrasting with the slightly reflective leather and the warm, organic corozo.

The Art of Corozo

Corozo — also known as vegetable ivory — is the seed of the tagua palm, a palm tree native to South America. The seed is extremely hard and dense, with a surface that resembles ivory — smooth, warm, and slightly translucent. Corozo has been used as a button material since the 19th century as a sustainable alternative to ivory, and is considered one of the finest natural button materials available. Each corozo button is unique — the natural variation in the seed visible in the surface of each button, the colour and texture varying slightly between buttons. Corozo buttons are warm, organic, and sustainable — a premium hardware detail that is simultaneously a sustainability choice and a quality marker.

How to Wear It

• With Sash, Belted: Attach the removable sash and wear the jacket belted — the sash creating a defined waist within the oversized silhouette, the boiled wool and leather visible above and below the belt.
• Without Sash, Clean: Remove the sash and wear the jacket in its oversized silhouette — the boiled wool and leather inserts the focal points, the double-slider zip the only closure.
• Zip Open at Hem: Open the bottom slider for movement — the jacket remains closed at the chest while opening at the hem for freedom of movement.
• All Black: Combine with other black pieces — the boiled wool and leather inserts create natural variation within an all-black palette, the corozo buttons adding warm organic contrast.

Care Instructions

• Dry clean recommended — the boiled wool shell and genuine leather inserts require professional care to preserve the felted structure and leather surface
• If spot cleaning the boiled wool, use a damp cloth; do not saturate the boiled wool or the leather inserts
• Do not machine wash — water immersion will damage the boiled wool structure and the leather inserts
• Do not tumble dry or iron the leather inserts — heat will damage the leather surface
• Store hung to preserve the oversized silhouette; store the removable sash separately or attached
• Condition the leather inserts periodically with a leather conditioner to preserve the surface

Boiled wool. Genuine leather inserts. Removable sash. Corozo buttons. The jacket with five premium details. LA HAINE INSIDE US. Boiled Wool and Genuine Leather. Italian Craftsmanship.