Sku: S1500

Kiki briefs knickers underwear pdf sewing pattern

Featuring:  Fitted at the low/middle waist and hips medium cut briefs. Offered with a low rise and medium or high rise with control waistband. Can be made with a fixed (2 fully enclosed gusset seams) or floating gusset (1 gusset seam in the back). The leg openings have 2 different cut lines for different finishes:  braided or clear elastic, picot elastic, fold-over elastic, stretch lace trim or regular bands. Offers full coverage in the front and in the back. Comfortable control waistband option (for high and medium rise) offers additional support around the abdomen area. Very beginner friendly project with lots of options.

Options for the rise:
Low rise finished with a regular/picot/FOE elastic, stretch lace trim or a regular band.
Medium and high rise finished with a control waistband.

Options for the leg finishes:
* Clear/braided elastic
* Picot elastic (scalloped edge elastic)
* Fold-over elastic (FOE)
* Stretch lace trim
* Regular bands (no additional supplies needed)

Techniques to master: serging, topstitching, attaching FOE, attaching lace trim, attaching picot elastic.

This pattern is designed to get professionally looking garment using a standard sewing machine. 

Comes with a detailed tutorial with step by step instructions and photos.


1. PDF tutorial with pictures (28 pages)
2. A4/Letter layered multisided  pattern in sizes XXS-4XL in REGULAR/PETITE/TALL height (32-36 pages)
3. A0/Copyshop layered multisized pattern in sizes XXS-4XL in REGULAR/PETITE/TALL height (2 pages)
4. Projector multisized layered pattern with a calibration grid in sizes XXS-4XL in REGULAR/PETITE/TALL height
5. Email/Facebook group support


The pdf pattern comes in REGULAR, PETITE and TALL with sizes from XXS to 4XL

US0-US22 / UK8-UK26
PETITE 152-160 cm /5 1” - 5 3”
REGULAR 162-170 cm / 5 4” - 5 6”
TALL 170-178 cm / 5 7” - 5 9”

Sinclair Patterns Sizing guide Womens



The pdf pattern is a beginner (3/10)  level and moderately easy to sew.
First pair might take 1-2 hours, the following pairs take 15-20 minutes to finish (time may vary depending on your skills, equipment and supplies).


Light to medium weight, knit fabrics with excellent recovery and with at least 30-50% horizontal and 10-20% vertical stretch like Cotton Lycra, Stretch mesh, Nylon Lycra.

45-60" / 115-160 cm  - 0.45 m / 1/2 yards
For high rise control waistband add extra 0.2 m / 1/4 yards

Lining (gusset)

Light to medium weight fabrics like cotton jersey, cotton interlock and other fabrics with natural fibres. The fabric doesn't need to have good recovery. 

Finishes for leg openings / waistline

Clear or braided elastic 3-6 mm / 1/8-1/4 in width or
Picot elastic 5-10 mm / 1/4-3/8 in width or
Fold-over elastic 15 mm / 5/8 in width or
Stretch lace trim 10-15mm / 5/8 in width or

For leg openings - 80-145 cm / 32-38 in - for detailed lengths please check Tutorial

For waistline finish (low rise, control waistband) - 85% of your waist measurement -  for detailed lengths please check Tutorial


  1. Polyester / Cotton threads 

  2. (optional) Matching overlocker threads, preferably wooly nylon stretch overlocking thread

Customer Reviews

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Our patterns come in extensive sizing range and each pattern offers Petite/Short, Regular and Tall options. All options included into the patterns.

We do not offer separate cup sizing for our knit patterns.

Cup sizes for different sizes you can find in the table below. The sizing letters refer to 'sewing cup size' which is measured as a difference between upper and full bust in inches. This cup sizing is different from bra cup sizing. As a general rule our patterns fit well majority of our customers without additional modifications. 


Full sizing guide for Women 

* Please note that some patterns have US0-US22 sizing included into the patterns. Check individual pattens to get that information. 

PETITE 152-160 cm /5 1” - 5 3”
REGULAR 162-170 cm / 5 4” - 5 6”
TALL 170-178 cm / 5 7” - 5 9”

More information: What is the difference between Petite, Regular and Tall

Sinclair patterns - PDF sewing sewing patterns sizing guide

Full sizing guide for Men 

SHORT 163-170 cm /5’4” - 5’7”
REG 173-180 cm / 5’8” - 5’11”
TALL 183-190 cm / 6’-6’3”
Sinclair Patterns Sizing guide for Mens patterns


Full sizing guide for children 

Our sewing patterns for children is are for 2 body types - Regular and Slim. Please note, that Regular and Slim sizing charts refer to the body type (vertical to horizontal measurements proportions) and not to the fit of the garment.

REGULAR sizing
Sizes A-R or D-R (check individual patterns for sizing)  
HEIGHT 56-164 cm / 22-64.6 in or 80-164 cm / 31.5-64.6 in
Appr. 0 Months - 14 Years or 12 Months - 14 Years

SLIM sizing
Sizes D-R
HEIGHT 80-164 cm / 31.5-64.6 in
Appr. 12 Months - 14 Years

Sinclair Patterns kids - sizing guide pdf sewing patterns

More resources




This is a PDF pattern that is delivered as a downloadable file which you can further print at home, print at copyshop or use with your projector.
The files provided with the pattern are Read only. You cannot edit them.
You need to have Adobe Acrobat (free app) to open and print them.
You can use this pattern for your small home based sewing business, including manufacturing small batches of garments for sale.

If you need any further assistance you can contact us via email: