Amanzi Girls and Womens Proback Size Guide

The AMANZI Proback One Piece is an all-purpose training swimsuit engineered for both competitive and active swimmers. The thin shoulder straps reduce the weight placed on the neck and shoulder muscles, allowing maximum freedom and ease of movement whilst swimming. The wide open back follows the natural contours of the body for an ergonomic fit and superior comfort, while the medium cut leg is suitable for all figures. Made from AMANZI Armor chlorine-resistant fabric with maximum 50+ UV protection, front lining, and binding on the chest, straps, and lower back.

Shop Women's Proback Swimsuits → Shop Girls' Proback Swimsuits →
Sizing Table — AMANZI Proback One Piece (AM10)
Size 24 26 28 30 32 34 36 38
UK / US 24 26 28 30 32 34 36 38
AUS Girls 08 Girls 10 Girls 12 Girls 14 / Womens 06 Womens 08 Womens 10 Womens 12 Womens 14
D 128 140 152 164 / 32 34 36 38 40
F 8 ans 10 ans 12 ans 14 ans / 34 36 38 40 42
Body Measurements (cm)
Bust (cm) 65–70 70–75 75–80 78–83 80–85 85–90 90–95 95–100
Bust (inches) 25.6–27.6 27.6–29.5 29.5–31.5 30.7–32.7 31.5–33.5 33.5–35.4 35.4–37.4 37.4–39.4
Waist (cm) 60 62 64 66 70 74 78 82
Waist (inches) 23.6 24.4 25.2 26.0 27.6 29.1 30.7 32.3

UK/US sizes are the primary reference. AUS, D, and F are equivalent sizes. Size 30 spans Girls 14 and Womens 06 AUS. If between sizes, speak to a member of staff at Allens.

Fit Notes — AMANZI Proback One Piece
  • Size based on your bust and waist measurements. If measurements suggest different sizes, prioritise the bust measurement for the most comfortable fit across the upper body.
  • The thin shoulder straps are designed to minimise neck and shoulder load — they should sit flat and feel secure without digging in or slipping during training.
  • The wide open back follows the natural contours of the body. The back opening should sit flat without gaping, with the binding lying comfortably against the skin.
  • The medium leg height is suitable for all figures and provides a balanced level of coverage for both pool and open water training.
  • Made from AMANZI Armor chlorine-resistant fabric — rinse in cold fresh water after every session and allow to dry naturally away from direct sunlight.
  • Unsure? Contact our team or call +44 1827 330600.
Frequently Asked Questions — AMANZI Proback One Piece

Measure your bust and waist in centimetres and match to the size table above. UK/US sizing is the primary reference — AUS, D, and F equivalents are also shown. If your measurements suggest different sizes, prioritise the bust measurement. Speak to a member of staff at Allens if you are unsure.

Yes. The size range starts at size 24 (Girls 08 AUS) and covers girls' sizes through to size 30 (Girls 14 / Womens 06 AUS), as well as adult women's sizes from 30 to 38. Size based on bust and waist measurements using the table above.

The AMANZI Proback One Piece features a medium leg height, which provides a balanced level of coverage suitable for all figures. It sits between a high leg and a more conservative cut, making it a versatile choice for both pool training and active swimming.

The Proback features fixed thin shoulder straps with binding on the chest, straps, and lower back, providing a structured and secure fit. The Tie Back has fully adjustable tie straps which allow a more customisable fit. The Proback has a medium leg height throughout the range, while the Tie Back features a medium leg height in girls' sizes (26 and 28) and a higher leg cut in women's sizes (30 and above).

Yes. The AMANZI Proback One Piece is engineered for both competitive and active swimmers. The thin shoulder straps maximise freedom of movement, the open back follows the body's natural contours for comfort during training, and the chlorine-resistant fabric is designed for regular pool use. It is a training suit rather than a competition suit — for racing, see the AMANZI Acceler8 RIZE range.

The binding on the chest, straps, and lower back reinforces the edges of the suit, providing a cleaner finish, added durability at stress points, and a more supportive feel. It also helps the suit keep its shape over time with regular use.

Rinse in cold fresh water after every session to remove chlorine and salt. Allow to dry naturally away from direct sunlight — do not tumble dry or wring. The AMANZI Armor chlorine-resistant fabric is built for regular pool use and will maintain its colour and shape with proper care.