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3R M1300 Trousers - Black Comfort Fit Fluid Lyocell Wooden Button Darted Italian Men's
Fluid, Not Loose
Comfort-fit trousers in fluid lyocell, cut with leg darts that give the drape direction and finished with a wooden button over a concealed zip. Elasticated at the back of the waist only, with internal drawstrings and hem ties. Made in Italy by LA HAINE INSIDE US, tailoring that moves like fabric rather than structure.
Why These Trousers Are Different
- Fluid lyocell — it falls rather than holds, giving a liquid drape that cotton and polyester cannot reproduce.
- Leg darts — shaping built into the leg itself, so the volume follows a line instead of hanging flat.
- Back-only elasticated waist — a flat, tailored front with hidden give at the back. Unlike a fully elasticated trouser, this reads as proper tailoring from every angle.
- Wooden button and concealed zip — a natural, warm-to-the-touch closure over hardware that stays out of sight.
- Internal drawstrings and hem ties — adjust the waist and gather the leg opening, so one pair gives you several shapes.
- Breathable and temperature-regulating — lyocell moves moisture away from the skin, so these work well past winter.
- Sustainably produced fibre — lyocell is made from wood pulp in a closed-loop process that recovers and reuses its solvent.
- Sized S to XXL — a broad range, cut consistently across it.
- Total black, no logos — pure silhouette and drape, nothing to date it.
- Made in Italy — Italian construction and finishing throughout.
Specifications
- Style: Comfort-fit trousers in fluid lyocell with leg darts
- Color: Black
- Material: 70% lyocell, 30% polyester
- Features: Back-elasticated waist, internal drawstrings, hem drawstrings, wooden button with concealed zip, pockets, leg darts
- Fit: Comfort
- Origin: Made in Italy
- Brand: LA HAINE INSIDE US
- Season: All season
- Gender: Men's
- Model: Height 185cm, chest 100cm, shoulders 48cm, waist 82cm, hips 98cm — wearing size M
Men's Size Chart
| Size | Waist (cm) | Hip (cm) |
|---|---|---|
| S | 74-80 | 94-98 |
| M | 80-86 | 98-102 |
| L | 86-92 | 102-106 |
| XL | 92-98 | 106-112 |
| XXL | 98-106 | 112-118 |
Comfort fit with a back-elasticated waist and internal drawstring — each size covers a wider waist range than rigid tailoring.
The Moment You Put It On
Lyocell is cool to the touch, almost slippery, and the weight of it pulls the leg straight down the moment you stand. The front sits flat under the wooden button, the back gives quietly, and nothing pinches.
Walk and the fabric swings a fraction behind you, the darts holding the shape as it moves. Pull the hem ties and the leg gathers to the ankle. Where a standard comfort trouser trades away the tailored look for the tailored feel, these keep both, which is why they end up worn far more often than they were bought for.
The Art of Lyocell
Lyocell is a regenerated cellulose fibre spun from wood pulp in a closed-loop process, meaning over 99% of the non-toxic solvent is captured and reused rather than discharged. The fibre it produces is exceptionally smooth, so it drapes with a weight and fluidity closer to silk than to cotton, resists creasing, and manages moisture better than most naturals. It is one of the few genuinely sustainable fibres that also outperforms the conventional alternative.
The Art of Dart Construction
A dart is a folded wedge of fabric stitched out to turn flat cloth into three-dimensional shape. Placing them in the leg, rather than only at the waist, lets a comfort trouser carry volume that still follows the body's line. It is more pattern work and more sewing than a straight side seam, and it is the reason these drape instead of simply hanging.
How to Wear It
- Everyday: hem ties released, with a soft tee and boots, the fluid leg falling clean.
- Sharp daytime: with a fine knit tucked in, the flat tailored front doing the formal work.
- Travel: lyocell resists creasing and breathes, so they come out of a bag ready and stay comfortable for hours.
- Evening: hems gathered, worn with a long black shirt, the drape catching light as you move.
Care Instructions
- Machine wash cold on a gentle cycle, inside out — lyocell is weaker when wet and needs a light touch.
- Wash with similar dark colours.
- Do not bleach.
- Do not wring or twist; press water out gently.
- Do not tumble dry on high heat; low or line dry is best.
- Line dry in shade on a hanger so the drape sets straight.
- Iron on medium if needed, inside out, while slightly damp.
- Keep the wooden button out of prolonged soaking and harsh detergents.
LA HAINE INSIDE US. Fluid lyocell. Made in Italy.











