Funkita Girls Size Guide

This size guide covers Funkita Girls Training Swimwear, including eight one-piece styles across the training range. All styles are made from ECO C-Infinity or C-Infinity fabric — 100% Italian polyester with 100% chlorine resistance, high-definition colour fastness, and 50+ UV sun protection. Fabric milled in Italy.

Sizing is based on chest, waist, hip, and body loop measurements. The range covers sizes 24–30 (UK), suited to girls aged approximately 8–14. Two styles in the range — the Fast Secure One Piece Period protection and Diamond Back Secure One Piece Period protection — feature an absorbent gusset lining providing light flow protection, allowing girls to swim with confidence during their period.

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How to Measure — Funkita Girls
How to measure for Funkita girls swimwear

Measure in centimetres with a soft tape measure taken directly against the skin or over light underwear. Four measurements are used to find the best Funkita fit.

  • Body Loop — the most important measurement for one-piece swimsuits. Start at the shoulder, run the tape down the front of the body, through the crotch, and back up to the same shoulder point. This ensures the suit fits the full length of the torso without pulling or gaping.
  • Chest — measure around the fullest part of the chest, keeping the tape parallel to the floor.
  • Waist — measure around the narrowest part of the waistline, usually just above the belly button.
  • Hips — measure around the fullest part of the hips and seat, keeping the tape parallel to the floor.
Size 24 — 8 yrs 26 — 10 yrs 28 — 12 yrs 30 — 14 yrs
UK 24 26 28 30
US 24 26 28 30
AUS 8 10 12 14
France 8 ans 10 ans 12 ans 14 ans
Body Measurements (cm)
Body Loop (cm) 133–138 138–143 143–148 148–153
Chest (cm) 62–68 68–74 74–80 80–86
Waist (cm) 55–60 58–62 60–65 63–67
Hips (cm) 70–75 75–80 80–85 85–90

UK and US sizes are equivalent. AUS sizes are even numbers (8–14). Use the body loop as the primary measurement for one-piece swimsuits — it is the most reliable guide for overall fit. If between sizes, speak to a member of staff at Allens.

Fast Training One Piece
  • Wide elastic straps for a secure, comfortable fit during training.
  • Full upper leg coverage with front panel lining — built for serious training sessions.
  • Smooth fit with high-definition colour fastness and Funkita embroidery detail.
  • ECO C-Infinity fabric — 100% chlorine resistant, 50+ UV, made from recycled plastic bottles. 100% polyester, milled in Italy.
Diamond Back One Piece
  • Funky Trunks' most popular girls one piece — fabric panels across the back for a secure fit.
  • Single bind shoulder straps with modest rear coverage and full front lining.
  • High-definition colour fastness and Funkita embroidery detail.
  • ECO C-Infinity fabric — 100% chlorine resistant, 50+ UV, made from recycled plastic bottles. 100% polyester, milled in Italy.
Fast Secure One Piece Period protection
  • Absorbent gusset lining provides discreet light flow protection during periods, so girls can swim with confidence.
  • Thinner shoulder straps with single bind finish — designed to sit comfortably away from the shoulders during the pull phase.
  • Moderate high leg and rear coverage with full front lining and Funkita embroidery.
  • C-Infinity fabric — 100% chlorine resistant, 50+ UV. Ideal for frequent pool use. 100% polyester, milled in Italy.
Diamond Back Secure One Piece Period protection
  • Absorbent gusset lining provides discreet light flow protection during periods, so girls can swim with confidence.
  • Fabric panels across the back for a secure fit with single bind shoulder straps and modest rear coverage.
  • Full front lining and Funkita embroidery detail.
  • C-Infinity fabric — 100% chlorine resistant, 50+ UV. Ideal for frequent pool use. 100% polyester, milled in Italy.
Tie Me Tight One Piece
  • High-cut leg with full front lining — built for girls who mean business in the pool.
  • Shape retention and soft feel with quick-drying features.
  • ECO C-Infinity fabric — 100% chlorine resistant, 50+ UV, recycled plastic bottles. 100% polyester, milled in Italy.
Twisted One Piece
  • High-cut leg with full front lining and a twisted strap design for a distinctive pool deck look.
  • Shape retention and soft feel with quick-drying features and Funkita embroidery.
  • ECO C-Infinity fabric — 100% chlorine resistant, 50+ UV, recycled plastic bottles. 100% polyester, milled in Italy.
Single Strap One Piece
  • Single bind straps that criss-cross down the back for a striking pool deck look.
  • Moderately high-cut leg with full front lining and excellent durability and freedom of movement.
  • ECO C-Infinity fabric — 100% chlorine resistant, 50+ UV, recycled plastic bottles. 100% polyester, milled in Italy.
Strapped In One Piece
  • Criss-cross straps across the back with a high-cut leg and full front lining — a bold statement suit for pool deck.
  • Excellent durability and freedom of movement with Funkita embroidery detail.
  • ECO C-Infinity fabric — 100% chlorine resistant, 50+ UV, recycled plastic bottles. 100% polyester, milled in Italy.
Fit Notes — Funkita Girls Swimwear
  • The body loop is the most important measurement for one-piece swimsuits. A suit that is too short in the body loop will pull down at the shoulders or ride up at the leg — always check this measurement first.
  • If measurements suggest different sizes, prioritise the body loop, then chest. Waist and hip are secondary guides for one-piece suits.
  • Styles showing the Period protection symbol — the Fast Secure and Diamond Back Secure suits — feature an absorbent gusset lining providing light flow protection, allowing girls to swim with confidence during their period without requiring additional protection for light flow.
  • ECO C-Infinity and C-Infinity fabrics are 100% chlorine resistant and built for regular training. 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 — Funkita Girls Swimwear

Take four measurements — body loop, chest, waist, and hips — and match to the size table above. The body loop is the most important measurement for one-piece swimsuits. UK and US sizes are equivalent; AUS sizes are even numbers (8, 10, 12, 14). If measurements fall between sizes, speak to a member of staff at Allens.

The body loop is a full-length torso measurement taken from one shoulder, down the front of the body, through the crotch, and back up to the same shoulder. It is the most reliable guide for one-piece swimsuit fit and is unique to Funkita sizing. A suit that is too short in the body loop will pull at the shoulders and be uncomfortable to wear — always measure this first.

The Fast Secure One Piece and Diamond Back Secure One Piece both feature a built-in absorbent gusset lining that provides discreet light flow protection during periods. This allows girls to swim with confidence without requiring additional protection for light flow. These suits look identical to the standard versions and the lining is completely discreet.

C-Infinity is Funkita's exclusive 100% Italian polyester fabric with 100% chlorine resistance, high-definition colour fastness, and 50+ UV protection. ECO C-Infinity is the same fabric manufactured from end-of-life plastic water bottles, offering identical performance while reducing environmental impact. The Fast Secure and Diamond Back Secure suits use C-Infinity; all other styles in this range use ECO C-Infinity.

The Funkita girls' range covers sizes 24–30 (UK), corresponding to AUS sizes 8–14, and is suited to girls aged approximately 8–14. However, children develop at different rates and age is only a rough guide — always measure using the size table for the most accurate fit.

The Fast Training One Piece provides the most coverage with full upper leg coverage and wide elastic straps. The Diamond Back and Diamond Back Secure suits offer modest rear coverage. The Tie Me Tight, Twisted, Single Strap, and Strapped In all feature a high-cut leg with full front lining. The Fast Secure and Single Strap styles have a moderately high leg height for a mid-level of coverage.

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 fabric. ECO C-Infinity and C-Infinity fabrics are 100% chlorine resistant and built for regular training. With proper care the prints and fabric will maintain their quality and colour for longer.

If your body loop and chest measurements suggest different sizes, prioritise the body loop for the most comfortable overall fit. If all measurements fall evenly between two sizes, speak to a member of staff at Allens — we can advise based on the specific style you are interested in, as some styles have more stretch than others.