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Tilly and The Buttons Iris - pattern for knickers



Learn to sew your own undies with this multi-style knickers sewing pattern, created in collaboration with lingerie designer Evie Laùve

The step-by-step photo instructions and helpful tips make this a great project for lingerie novices.

Incredibly versatile, the mix-and-match sewing pattern includes a choice of low, mid and high legs and waistlines. They can be finished with fold over elastic and/or narrow stretch lace, depending on your style, making a total of 36 combinations!

A pleasure to sew, and a perfect scrap busting project, you can whip them up on a regular sewing machine. Once you’ve made your first pair, you’ll be hooked!

Iris sewing pattern includes Tilly and the Buttons' award-winning beginner-friendly instructions, with colour photos showing you each step – making it easy for you to create gorgeous clothes you can be proud to say you made yourself.

SKILL LEVEL - Confident beginner

SIZE RANGE - UK 6-24 (US 2-20 / EUR 34-52)

Tilly and the Buttons patterns are printed on durable paper supplied in a sturdy envelope, also included is a high quality instruction booklet with step-by-step colour photos, jargon buster and helpful sewing tips. Designed and printed in the UK.


Fabric Requirements

Main Fabric
Sizes 1-5: 0.5m (5/8yd) x 150cm (60in) OR 115cm (45in) wide
Sizes 6-10:
0.6m (5/8yd) x 150cm (60in) OR 115cm (45in) wide

Crotch Lining Fabric
All sizes: 0.25 x 0.25m (3/8 x 3/8yd)

FOE or Narrow Stretch Lace
Sizes 1-5: 0.9m (1yd) for waistline + 1.2m (1 3/8yd) for leg openings
Sizes 6-10: 1.2m (1 1/4 yd) for waistline + 1.6 m (1 3/4yd) for leg openings

NB: Most stretch laces are suitable for all leg opening options and the low waist opening. If you want to use lace for the high and mid waist openings, make sure your lace has a similar stretch percentage to your main fabric (40-60%)


  • Narrow stretch lace x 20-40mm (3/4-1 1/2in) wide AND/OR fold over elastic (FOE) x 15-20mm (5/8-3/4in) – see above
  • All-purpose polyester thread to match your fabric, lace and/or FOE
  • Sewing machine with an adjustable zigzag stitch, stretch needle and basic tools
  • Optional: Overlocker (serger)

  • Size Guide

    SIZES (body measurements)

    1 (UK 6) 76cm (30in) 61cm (24in) 84cm (33in)
    2 (UK 8) 81cm (32in) 66cm (26in) 89cm (35in)
    3 (UK 10) 86.5cm (34in) 71cm (28in) 94cm (37in)
    4 (UK 12) 91.5cm (36in) 76cm (30in) 99cm (39in)
    5 (UK 14) 96.5cm (38in) 81cm (32in) 104cm (41in)
    6 (UK 16) 101.5cm (40in) 86.5cm (34in) 109cm (43in)
    7 (UK 18) 106.5cm (42in) 91.5cm (36in) 114cm (45in)
    8 (UK 20) 112cm (44in) 96.5cm (38in) 119.5cm (47in)
    9 (UK 22) 117cm (46in) 101.5cm (40in) 124.5cm (49in)
    10 (UK 24) 122cm (48in) 106.5cm (42in) 129.5cm (51in)


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