Bra Pattern, Bikini Swimsuit Pattern Three Sisters Pattern, Bra-Makers Supply

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Three Sisters Bikini Pattern

The Three Sisters Bikini Pattern collection provides a choice of 3 unique tops and bottoms.

Each top option includes an interior underwired bra, made from swim cup foam.

Each bottom option includes a high-cut waist with a doubled fabric waistband and a center back seam, for shapely results. 


  • The bottoms fit hip sizes 35-47″(89-119.5 cm)
  • The tops are sized according to a cross-cup with instructions provided to get the right fit. 

Tops are sized to use the SHORT WIRES for underwires in a variety of sizes.

Pattern Styles:

Violet – vertical seamed bra top and bottoms, button trim at the waist.
Rebecca – uses a tie to gather the front of the top, bottoms include a ruched front panel.
Marsha – top includes a twisted knot effect, bottoms include mini twists at the side front.

Materials Required:

.5 m (½ yd) of spandex blend swimsuit fabric with stretch in both the lengthwise and the crosswise direction
.5 meters (½ yd) of 100% nylon swimsuit lining
.3 meters (⅓ yd) of chlorine resistant swim cup foam or pre-finished foam, or cut & sew foam
4 meters (4 ½ yd) of ⅜” (9 mm) swimsuit elastic such as Filpar
A piece of stabilized fabric 8″ x 8″ for the bra side frame and the bridge
.8 m (¾ yd) of channeling (wire casing)
2 rings 1/2″ (12 mm) or larger for the strap attachment
.5 m (½ yd) or less of stay tape to stabilize the neckline edge
4 buttons ¾” (18 mm) in diameter (for Violet bottoms only)
1 pair of underwires in the  size indicated