PO827 Sierra formal dress front angle
PO827 Side
PO827 Back
Deux Belettes 2020 PO827 2
Deux Belettes 2020 PO827 1


Spread your wings in our Papillon 2020 collection. The Sierra PO827 is a fully lined, floor length, metallic jersey fabric formal dress available in sizes AU 4-30. Please contact your nearest stockist for pricing and availability, 

Electric blue
Electric blue
White Gold
White Gold

The Sierra PO827 formal dress is perfect for high school graduation balls and evening events. With a vision to craft sophisticated timeless pieces for every occasion, Tania Olsen Designs is the culmination of decades in the fashion industry and a love of luxurious fabrics and rich colours. From each season’s inception, impeccable tailoring brings to life versatile, modern interpretations of classic design. Our largest single collection of gowns so far, Papillon is the culmination of decades in the fashion industry and a love of luxurious fabrics and rich colours. The formal and evening collection features daring leg splits and lavish embellishments, crafted to perfectly accentuate and compliment any figure.

Features of the Sierra PO827 Formal dress:

  • Two piece co-ord set
  • Crop bodice with cowl neck
  • Spaghetti straps
  • Metallic jersey fabric
  • Wrap style skirt
  • Fitted silhouette
  • High leg split
  • Scoop back
  • Floor length skirt
  • Fully lined
  • Inner bra cups
  • Back zippers
  • Available in: Electric blue, White gold, Red
  • Style: PO827

All of the dresses are designed to be flattering for a variety of different body types, as this collection is available to order in sizes 4-30. To find your perfect fit, please contact your nearest Tania Olsen stockist for assistance with correct measurement and best size selection.

For more formal dress inspiration, take a look at our Pinterest.

Additional information


Electric blue, White Gold, Red

Parent Colour

Blue, Gold, Red




Metallic jersey


Floor length, Mini


Cowl neck, Spaghetti strap


Fitted, Straight

Colour and Fabric

Colour’s displayed on your monitor may vary from the actual fabric colour. Please view a fabric swatch in person at your nearest Tania Olsen Stockist. Please note that each dye lot could vary up to 5% from the colour swatch shown in store and these should be used as a guide.


  • Available to order from sizes 4-30 and 4-30L (extra length)
  • We recommend having your measurements taken to select your size from the Tania Olsen Size chart. Store samples should not be used to select a size as they can change shape over time with different body shapes trying them on.
  • Alterations may be required for a tailored fit.