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Triangles & Tangas Bikini


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Triangles & Tangas Bikini Patterns by Pin-Up Girls

Pin-up Girls is proud to present this collection of Triangles & Tangas Bikini Patterns. The triangle tops and tanga bottoms are great for beachwear, swimwear, or posing suits for fitness competitions. All are non-wired and use a variety of construction methods for the ultimate in sewing freedom.

Included in this collection is a choice of 3 tops and 3 bottoms, suitable for beachwear or fitness competition wear (posing suits). All tops are a triangle style and all bottoms are a “cheeky” style designed to expose the derrière. The cheeks are exposed along the bottom edge, but not as much would be exposed in a thong!

Bonus – includes a lesson on how to sew the elastic invisibly inside the straps and ties – no shifting, no hassle!

Pattern Styles:

Malibu – a classic all-fabric triangle top, with a string to gather the bottom edge and tie-up halter straps with a back drawstring. Co-ordinating or contrast binding highlights and finishes the edges. The bottoms tie with self-made strings at the hip.

Miami –  includes a band that runs under the cups, made with darted fabric over cut-and-sew foam lining. This allows for the best in comfort and sewing ease. Binding accents the edges. The bottoms include criss-cross band at the centre front.

Maui – the latest in tanga fashion, with a Brazilian scrunch along the centre back. Use pre-formed foam cups for the top. These cups cover beautifully with darts, gathers, or even seamlessly, with the right fabric!


The Triangles Tangas Bikini Pattern uses the Pin-up Girls unique method of sizing for the bikini top.  The tops fit a breast measuring from 6″-9.5″ (16.5-24 cm) in the cross cup. To measure the cross cup, simply measure across the fullest part of the bust, from wire line to wire line. The bottoms fit hip sizes 33-45″(84-114 cm)

Required Materials for all suits:

0.5 m (½ yd) of spandex blend swimsuit fabric with stretch in both lengthwise and crosswise directions
0.5 metres (½ yd) of 100% nylon swimsuit lining
4 metres (4 ½ yd) of ⅜” (9 mm) swimsuit elastic, such as Filpar
2 rings ½” (12 mm) or larger for the strap attachment

Miami Also Requires
0.3 metres (1/3 yd) of swim cup foam
1 g-hook or swim clicker 1″(25 mm) wide

Maui Also Requires
1 pr. pre-formed triangle cups in your size
0.3 m of ¼” elastic for the back gathers
1 g-hook or swim clicker ¾” (18 mm) wide

Additional information

Pattern Category


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