Baron Boutique’s flannel is an amazing fabric, lighter than traditional flannel with a nice soft hand. Grey flannel trousers handcrafted with superb quality and fit perfectly to any shape or size. Grey flannel trousers go well with just about any color shirt. Great casual or formal wear for weekdays or weekends and doesn’t show the dirt, making the trousers a great choice for two or three days wear when away from laundry facilities.
Men’s Measurement Guide
Follow these simple steps to ensure your custom garment fits you perfectly. All you need is a flexible measuring tape.
How to Measure Your Chest
- Stand up straight with your arms relaxed at your sides.
- Wrap the measuring tape around the fullest part of your chest, typically right under your armpits.
- Keep the tape parallel to the floor.
- The tape should be snug against your body but not tight enough to restrict breathing.
- Read the measurement in the mirror or have someone help you.
How to Measure Your Waist
- Identify the exact position where you normally wear the waistband of your trousers. This is typically at or just below your navel (belly button).
- Wrap the measuring tape around your body at that specific point. Ensure the tape is level and parallel to the floor.
- Stand in a relaxed, natural posture. Do not suck in your stomach or push it out.
- The tape should be snug, but not tight. For a comfortable fit, you should be able to place one finger between the tape and your body.
Any Questions about this product? Please feel free to ask.
Description
The grey flannel trouser is the single most versatile and essential trouser in a gentleman’s wardrobe. It possesses a unique sartorial alchemy, pairing with nearly anything, from a formal navy blazer to a simple fine cotton shirt. Our interpretation is commissioned in a lightweight Super 120s’ wool flannel, a cloth with a soft, brushed hand and a distinctly supple drape.
Form & Foundation
These **grey flannel trousers** are designed as a canvas for personal style. The construction is entirely yours to define: a clean, flat front or classic pleats; a belted waistband or the clean line of side-adjusters; finished with a plain hem or traditional turn-ups. The constant is the quality of the cloth and the precision of the cut.
A Personal Commission
The creation of your trousers is a collaborative process. Through our customizer, you will define the final silhouette and specify the details that make the garment uniquely yours. Accommodations, such as a fully extended lining, are naturally part of our bespoke service.
The Bespoke Promise: Your Fitting Canvas
A garment of such foundational importance demands an unimpeachable fit. Your commission therefore begins with a preliminary fitting trouser—a toile—crafted to your initial specifications. This critical step allows for the meticulous refinement of the trousers’ balance and line, ensuring the final flannel piece is achieved with absolute precision. The fitting canvas is, of course, yours to retain.
Dry clean.
Flannel Trousers Feature
- crafted from super 120s 100% wool flannel in plain cloth
- zip fly front with hook closure
- six 1.75-inch tall belt loops on 1.5 inches tall waistband
- slanted front pockets
- flat front styling
- two back pockets
- piped back pockets opening with button-through fastening
- hand made buttonholes
- an acetate lined pants front till knee
- a grip enforced waistband interior for better tuck-ins
- skirt waistband lining
- the leg-lengthening style in pants
- hand stitched pants hem
- hand-carved black horn buttons
- stitched and reinforced pants buttons by hand
- ample seam allowances for easy alteration
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Pants Fit Guide
Pants Fit Guide
Your pant fit sets the foundation for both style and comfort. This choice determines the cut and ease of movement in your test garment. Use this guide to select the fit that best matches your body type and style preference.

Slim Fit
A sleek, tapered shape from thigh to ankle.
Best for: Those with a lean build or who prefer a more tailored, modern look. The cut hugs the body closely without restricting movement.

Standard Fit
A straight-leg classic offering all-day comfort.
Best for: Most body types. This is the most versatile pant fit for everyday wear, offering balance between structure and ease.

Relaxed Fit
Generous room from hip to hem.
Best for: Those prioritizing ease of movement or requiring more space in the seat and thigh. Ideal for casual or comfort-driven tailoring.

Athletic Fit
Room in the thighs with a modern taper.
Best for: Muscular builds with broader thighs and glutes. Provides space without bagginess, tapering neatly at the lower leg.
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