Skip to content
PDF Pattern Men's long johns

Yenisei

Double front long johns with an elasticated waistband. Three pattern pieces and twelve steps, in thermal knit.

Man wearing the Yenisei long johns in grey, shown next to front and back technical sketches
40–54 Sizes included (S–5XL)
1.20–1.30 m Main fabric, by size
3 Pattern pieces
12 Steps to sew it

Double front thermal long johns

Double front long johns with elasticated waistband.

What you'll need

Suggested materials

  • Thermal fiber, knitted fabrics with high elasticity, with viscose and polyester in the composition, rib knit
  • Fabric width used throughout this tutorial — 1.50 m (1 5⁄8 yd)

Also needed

  • Elastic band 2 cm (¾″) wide — length per size, in the table below

Fabric requirement by size, for fabric width 1.50 m (1 5⁄8 yd)

Size 40–42
S–M
44–46
L–XLMOST PICKED
48–50
2XL–3XL
52–54
4XL–5XL
Main fabric 1.20 m
1 3⁄8 yd
1.25 m
1 3⁄8 yd
1.25 m
1 3⁄8 yd
1.30 m
1 3⁄8 yd

Elastic band length by size

Size 40 42 44MOST PICKED 46 48 50 52 54
Elastic band 74 cm
29 1⁄8″
78 cm
30 ¾″
82 cm
32 ½″
86 cm
33 7⁄8″
90 cm
35 ½″
94 cm
37″
98 cm
38 5⁄8″
102 cm
40 1⁄8″

Pattern pieces already include seam allowances. When purchasing fabric, please account for shrinkage and buy 5–10% more than required.

Cutting list

Specification

Pattern piecePcs.
Main fabric
1 — Main piece2
2 — Front piece2
3 — Waistband1
Diagram of the three numbered pattern pieces for the Yenisei long johns

Pattern pieces — tap to zoom in

Total ease allowances Waist 0 cm, hips 0 cm, thigh 0 cm.
Cutting layout

Layout of parts on fabric

Main fabric, width 1.50 m (1 5⁄8 yd), shown for sizes 40 and 54

Size 40 (S)
Main fabric cutting layout for the Yenisei long johns, size 40

Tap the diagram to zoom in

Size 54 (5XL)
Main fabric cutting layout for the Yenisei long johns, size 54

Tap the diagram to zoom in

Step by step

Sewing instructions

Twelve steps in two stages, from the double front to the elasticated waistband.

Assembly

6 steps
  1. 1

    Machine baste the darts on the front pieces (2) of the long johns, placing them face to face. Fix the overlocker stitch at the base of the dart. Press the seam allowances to different sides.

  2. 2

    Insert the main piece (1) along the front edge between the two pieces of the front piece (2). The front pieces should be face to face. Sew the two sides on the overlocker, turn them right side out and press (the seam ease allowances are located inside).

  3. 3

    Make 2 parallel topstitches on the front piece with a double needle or on a coverstitch machine.

  4. 4

    Topstitch the seat seam on the back piece of the long johns. Iron press the seam ease allowance to the side.

  5. 5

    Fold the long johns face to face and stitch the inseam on the overlocker. Iron press the seam allowances to the back side.

  6. 6

    Iron press the bottom of the garment to the wrong side along the notches, overcast and stitch with a double needle or a coverstitch machine.

Waistband

6 steps
  1. 1

    Decate the elastic band before sewing, then cut it to the desired length. Stitch it into a ring.

  2. 2

    Iron press the waistband (3) lengthwise and in half with the wrong side inward.

  3. 3

    Stitch the waistband into a ring, iron press the ease allowances apart.

  4. 4

    Put the elastic band inside the belt and fasten the lower edge.

  5. 5

    Place the waistband face to face with the upper edge of the long johns and sew on an overlocker. Iron press.

  6. 6

    Press the ready garment.

The long johns are ready!
💬