Men's Pants Sewing Pattern PDF | Structural Knee Darts

Men pleated pants made from Patternalism sewing pattern #0202 – front view, female model

€28

A men's pants sewing pattern PDF in EU sizes 46–56 — structural knee darts originating from both the side and inseams, inverted box pleats at the front and back, elastic waistband with a drawstring and a faux fly detail. The knee darts are what make this pattern unusual: they create intentional volume exactly where the leg bends, so the pants move with you. Deep side-seam pockets integrated into the design.

Sizing Guide →

Size EU 46 48 50 52 54 56

Height, cm 176-180

Printing Instructions →

We designed these pants for those who want clothing that does more than look considered. The knee dart — engineered from both the side seam and the inseam — is a construction detail you will not find in standard patterns.

The shape is driven by that dart: it creates volume precisely at the point of maximum movement, so the pants follow the leg rather than restrict it. Inverted box pleats at the front and back reinforce the geometry, keeping the silhouette sharp in motion. The faux fly and elastic waistband keep the external lines clean while making the construction straightforward.

What makes this construction distinctive:

The Knee Architecture: Darts originating from both the side seam and the inseam create structural volume at the knee. An engineering solution that reads as a design detail.
Comfort Without Compromise: A wide internal elastic waistband with a drawstring gives a precise, adjustable fit. The mock fly detail keeps the front clean and tailored in appearance.
Designed to Sew: Despite the visual complexity, the construction is laid out step by step. The result looks technical; the sewing process is not.

To maintain the intended "architectural" form, choose medium to heavy-weight fabrics with good recovery and structure:

Knits: Structured jersey, heavy-weight ponte, or scuba.
Woven: Mid-to-heavy weight linen, crisp cotton (twill or poplin), denim, or lightweight wool suiting.

Avoid: Thin, drapey, or "fluid" fabrics like viscose, rayon, or lightweight silk, as they will not hold the shape of the pleats and the structural intent will be lost.

		46	48	50	52	54	56
Main fabric, 140 cm (55") wide	m	2,57	2,64	2,83	2,9	2,95	2,95
Main fabric, 140 cm (55") wide	yd	2,82	2,89	3,1	3,18	3,23	3,23

A4 pattern file — tiled, print at home or at any print shop
Large-format pattern files — 600 mm and 900 mm wide, for plotter printing
Step-by-step sewing instructions

Thread: All-purpose polyester thread matching the fabric color (1 spool for sewing machine, 3-4 for overlocker/serger).
Elastic: 4–5 cm (approx. 2") wide waistband elastic.
Interfacing: Small amount of fusible interfacing to reinforce pocket openings and buttonholes/eyelets.
Drawstring: Decorative cord or ribbon (Waist circ. + 30–40 cm).

		46	48	50	52	54	56
Side seam length	cm	110,5	110,5	112,5	112,5	114,5	114,5
Side seam length	in	43,5	43,5	44,3	44,3	45,1	45,1
Waist elastic	cm	75,5	79	83	86,5	91	96,5
Waist elastic	in	29,7	31,1	32,7	34,1	35,8	38
Thigh	cm	91,5	95	98,5	102,5	106	110
Thigh	in	36	37,4	38,8	40,4	41,7	43,3
Bottom width	cm	32	33	34	35	36,5	38
Bottom width	in	12,6	13	13,4	13,8	14,4	15

Sewing Machine: With straight and zigzag stitch capabilities.
Overlocker/Serger: Recommended for professional seam finishing.
Needles: Universal No. 80-90 (for wovens) or Ballpoint/Jersey needles (for knits).
Ironing Tools: Steam iron or steam generator (crucial for setting the structural pleats).
Cutting Tools: Fabric shears or a rotary cutter.
Essentials: Tailor’s pins, chalk or fabric marker, and a safety pin or bodkin for threading the elastic.