The Mathilda One Piece by Gigi C Bikinis is a white, high-neck swimsuit with a front zip and triangular cutout pattern. It features a high-leg design, moderate bottom coverage, and scuba Flatlock seaming for a sleek, form-fitting look.
A person confidently poses in a white high-neck Mathilda One Piece by Gigi C Bikinis, featuring perforated details, a front zipper design, and scuba Flatlock seaming. The plain white background enhances the chic look.
A woman in a white Mathilda One Piece by Gigi C Bikinis, featuring elegant cut-out details and scuba Flatlock seaming, stands against a plain background, looking down and touching her hip as her long blonde hair cascades over her shoulders.
Rear view of a person with long blonde hair wearing Gigi C Bikinis Mathilda One Piece in white, sleeveless with a high collar and decorative side cut-outs, enhanced by a high-leg design. The simple background highlights its chic style.
Against a white background, a person models the Mathilda One Piece by Gigi C Bikinis, featuring a high neck and decorative cutouts. The sleek, high-leg swimsuit with Flatlock seaming highlights an elegant design as they gaze to the side with one hand on their hip.
Sporting Gigi C Bikinis Mathilda One Piece, this white swimsuit boasts geometric cutouts and a front zipper. Its high neckline, sleeveless design, and scuba Flatlock seaming offer sleek elegance against a plain backdrop.
A person wears a white Mathilda One Piece swimsuit by Gigi C Bikinis, featuring a high collar and small cut-out details with scuba Flatlock seaming, standing against a plain white background.
A person with long brown hair models the Mathilda One Piece by Gigi C Bikinis, a high-leg swimsuit with decorative cutouts, set against a plain white background.

Mathilda One Piece

Sale price$225.00
Size: XS
Size Guide
Inches Centimeters

SWIM Tops

SIZE BUST SIZE CUP SIZE
XS 32 — 33 ½ 34A / 32B / 30C
S 34 — 35 ½ 36A / 34B / 32C
M 36 ½ — 38 38A / 36B / 34C / 32D
L 39 — 41 38B / 36C / 34D / 34DD
XL 42 — 44 40B / 38C / 36D / 36DD

SWIM Bottoms

SIZE PANT SIZE HIPS
XS 0 — 2 34 ½ — 36
S 4 — 6 36 ½ — 38 ½
M 8 — 10 39 ½ — 41
L 12 — 14 42 — 44
XL 16 — 18 45 — 47

One-Piece SWIMSUITS

SIZE BUST WAIST HIPS
XS 32 — 33 ½ 24 ½ — 26 34 ½ — 36
S 34 — 35 ½ 26 ½ — 28 36 ½ — 38 ½
M 36 ½ — 38 29 — 30 ½ 39 ½ — 41
L 39 — 41 31 ½ — 33 ½ 42 — 44
XL 42 — 44 35 ½ — 38 ½ 45 — 47

SPORTS BRAS & TANKS

SIZE BUST SIZE CUP SIZE
XS 32 — 33 ½ 34A / 32B / 30C
S 34 — 35 ½ 36A / 34B / 32C
M 36 ½ — 38 38A / 36B / 34C / 32D
L 39 — 41 38B / 36C / 34D / 34DD
XL 42 — 44 40B / 38C / 36D / 36DD

LEGGINGS & SHORTS

SIZE WAIST STANDARD INSEAM HIPS
XS 24 ½ — 26 26 ½ 34 ½ — 36
S 26 ½ — 28 26 ½ 36 ½ — 38 ½
M 29 — 30 ½ 26 ½ 39 ½ — 41
L 31 ½ — 33 ½ 26 ½ 42 — 44
XL 35 ½ — 38 ½ 26 ½ 45 — 47

JUMPSUITS & ROMPERS

SIZE BUST WAIST HIPS
XS 32 — 33 ½ 24 ½ — 26 34 ½ — 36
S 34 — 35 ½ 26 ½ — 28 36 ½ — 38 ½
M 36 ½ — 38 29 — 30 ½ 39 ½ — 41
L 39 — 41 31 ½ — 33 ½ 42 — 44
XL 42 — 44 35 ½ — 38 ½ 45 — 47











Color: White

 

The Mathilda one-piece with a front center zipper, high neck, and back. A sleeveless version of our best-selling Riley Surfsuit, it will look and feel like it was made for you.  We simply can’t get enough of this ultra high-leg, super sexy one-piece with its peekaboo cutouts. 
  • Silky, thin scuba
  • Flatlock seaming hugs your curves and creates a silky smooth interior, ensuring ultimate comfort
  • Center-front locking zipper
  • Cutout design featuring lasercut technology for bold graphic shapes
  • Medium to minimal cheek coverage
  • 76% Polyester 24% Spandex
  • Model is 5' 9" - 34B" bust, 24" waist, 34" hips and is wearing a size small
Size & Fit
The Mathilda One Piece by Gigi C Bikinis is a white, high-neck swimsuit with a front zip and triangular cutout pattern. It features a high-leg design, moderate bottom coverage, and scuba Flatlock seaming for a sleek, form-fitting look.

Mathilda One Piece

Inches Centimeters

SWIM Tops

SIZE BUST SIZE CUP SIZE
XS 32 — 33 ½ 34A / 32B / 30C
S 34 — 35 ½ 36A / 34B / 32C
M 36 ½ — 38 38A / 36B / 34C / 32D
L 39 — 41 38B / 36C / 34D / 34DD
XL 42 — 44 40B / 38C / 36D / 36DD

SWIM Bottoms

SIZE PANT SIZE HIPS
XS 0 — 2 34 ½ — 36
S 4 — 6 36 ½ — 38 ½
M 8 — 10 39 ½ — 41
L 12 — 14 42 — 44
XL 16 — 18 45 — 47

One-Piece SWIMSUITS

SIZE BUST WAIST HIPS
XS 32 — 33 ½ 24 ½ — 26 34 ½ — 36
S 34 — 35 ½ 26 ½ — 28 36 ½ — 38 ½
M 36 ½ — 38 29 — 30 ½ 39 ½ — 41
L 39 — 41 31 ½ — 33 ½ 42 — 44
XL 42 — 44 35 ½ — 38 ½ 45 — 47

SPORTS BRAS & TANKS

SIZE BUST SIZE CUP SIZE
XS 32 — 33 ½ 34A / 32B / 30C
S 34 — 35 ½ 36A / 34B / 32C
M 36 ½ — 38 38A / 36B / 34C / 32D
L 39 — 41 38B / 36C / 34D / 34DD
XL 42 — 44 40B / 38C / 36D / 36DD

LEGGINGS & SHORTS

SIZE WAIST STANDARD INSEAM HIPS
XS 24 ½ — 26 26 ½ 34 ½ — 36
S 26 ½ — 28 26 ½ 36 ½ — 38 ½
M 29 — 30 ½ 26 ½ 39 ½ — 41
L 31 ½ — 33 ½ 26 ½ 42 — 44
XL 35 ½ — 38 ½ 26 ½ 45 — 47

JUMPSUITS & ROMPERS

SIZE BUST WAIST HIPS
XS 32 — 33 ½ 24 ½ — 26 34 ½ — 36
S 34 — 35 ½ 26 ½ — 28 36 ½ — 38 ½
M 36 ½ — 38 29 — 30 ½ 39 ½ — 41
L 39 — 41 31 ½ — 33 ½ 42 — 44
XL 42 — 44 35 ½ — 38 ½ 45 — 47











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