Need help? We're available to chat. You can call us on 0118 402 2895 or email us.

Free Tracked UK Delivery
On All Orders Over £40

Hassle Free Returns
On All Orders

Next Working Day OPTION
Order By 2pm Mon > Fri

Found It Cheaper?
We'll beat it!

Free Tracked UK Delivery
On All Orders Over £40

Hassle Free Returns
On All Orders

Next Working Day OPTION
Order By 2pm Mon > Fri

Found It Cheaper?
We'll beat it!

SHOP WITH CONFIDENCE - 5* RATED ON TRUSTPILOT with over 3,000 5* Reviews!

Swimwear Brands

X

X

X

X

X

X

X

X

Swimwear Outlet

X

Gift Ideas

X

Get Help From Simply Swim

X

X

womens swimwear UK Size 18

Browse & Buy UK Size 18 womens swimwear At Simply Swim. Shop With Confidence – Excellent Customer Reviews. Free UK Delivery available on UK Size 18 womens swimwear.

Show popular styles

Close

Filter for your size and we'll only show you what's in-stock.

Fashy Classic V-Back Swimsuit - Black - Front

Fashy Classic V-Back Swimsuit - Black - Front

On Sale

Fashy

Classic V-Back Swimsuit - Black

€33,95 Sold out

Speedo

Medley Logo Medalist Swimsuit - Black/Aquamarine Blue

€38,95 Sold out

Fashy Classic Adjustable Swimsuit - Black - Front

Fashy Classic Adjustable Swimsuit - Black - Front

On Sale

Fashy

Classic Adjustable Swimsuit - Black

€28,95 Sold out

Rated 4.0 out of 5

Based on 1 review

Crazy Wash Cannon Strikeback Swimsuit - Black/Pink/Blue

Crazy Wash Cannon Strikeback Swimsuit - Black/Pink/Blue

On Sale

Zoggs

Crazy Wash Cannon Strikeback Swimsuit - Black/Pink/Blue

€31,95 Sold out

Fashy Panel V-back Swimsuit - Navy/Red/White - product Front

Fashy Panel V-back Swimsuit - Navy/Red/White - product Front

On Sale

Fashy

Panel V-back Swimsuit - Navy/Red/White

€42,95 Sold out

Zoggs - Womens Sumatra Adjustable Scoopback Swimsuit - Magenta/Orange - Model Front

Zoggs - Womens Sumatra Adjustable Scoopback Swimsuit - Magenta/Orange - Model Front

On Sale

Zoggs

Sumatra Adjustable Scoopback Swimsuit - Magenta/Orange

€43,95 Sold out

Rated 5.0 out of 5

Based on 1 review

Speedo-SP-8-00305418176-Speedo-placementLanebackAF_Simply-Swim

Speedo-SP-8-00305418176-Speedo-placementLanebackAF_Simply-Swim

On Sale

Speedo

Placement Laneback Swimsuit - Navy/Coral

€47,95 Sold out

Rated 3.7 out of 5

Based on 3 reviews

Speedo - Digital Printed Legsuit - Black/Blue - Model Front

Speedo - Digital Printed Legsuit - Black/Blue - Model Front

On Sale

Speedo

Digital Printed Legsuit - Black/Blue

€48,95 Sold out

Rated 5.0 out of 5

Based on 1 review

Funkita - Choppy Waters Diamond Back Swimsuit - Multi - Model Front

Funkita - Choppy Waters Diamond Back Swimsuit - Multi - Model Front

Funkita

Choppy Waters Diamond Back Swimsuit - Multi

€55,95 Sold out

Speedo Womens Core Placement U-Back One Piece Swimsuit - Navy/Blue/Yellow - Front

Speedo Womens Core Placement U-Back One Piece Swimsuit - Navy/Blue/Yellow - Front

On Sale

Speedo

Core Placement U-Back Swimsuit - Navy/Blue/Yellow

€30,95 Sold out

Rated 5.0 out of 5

Based on 1 review

Speedo - Endurance+ Printed Medalist Swimsuit - Blue/White - Model Front

Speedo - Endurance+ Printed Medalist Swimsuit - Blue/White - Model Front

Speedo

Endurance+ Printed Medalist Swimsuit - Blue/White

€45,95 Sold out

Rated 5.0 out of 5

Based on 3 reviews

Funkita - The Glitch Diamond Back Swimsuit - Multi - Model Front

Funkita - The Glitch Diamond Back Swimsuit - Multi - Model Front

Funkita

The Glitch Diamond Back Swimsuit - Multi

€55,95 Sold out

Rated 5.0 out of 5

Based on 1 review

Zoggs - Womens Enigma Mystery Classicback Swimsuit - Navy/Multi - Model Front with Pose

Zoggs - Womens Enigma Mystery Classicback Swimsuit - Navy/Multi - Model Front with Pose

On Sale

Zoggs

Enigma Mystery Classicback Swimsuit - Navy/Multi

€47,95 Sold out

Speedo - Shaping Cross Knot Swimsuit - Black - Model Front

Speedo - Shaping Cross Knot Swimsuit - Black - Model Front

Speedo

Shaping Cross Knot Swimsuit - Black

€50,95 Sold out

Speedo-SP-8-00305816009-Speedo-placement-muscleback-black-Simply-Swim-front

Speedo-SP-8-00305816009-Speedo-placement-muscleback-black-Simply-Swim-front

Speedo

Placement Muscleback Swimsuit - Black/Green

€43,95 Sold out

Speedo-SP-8-00306716243-Speedo-shaping-contour-eclipse-navy-aqua-AFSimply-Swim-front

Speedo-SP-8-00306716243-Speedo-shaping-contour-eclipse-navy-aqua-AFSimply-Swim-front

Speedo

Shaping Contour Eclipse Swimsuit - Navy/Turquoise

€59,95 Sold out

FK-FTS033-women-diamond-back-baby-beamer_front

FK-FTS033-women-diamond-back-baby-beamer_front

On Sale

Funkita

Baby Beamer Diamond Back Swimsuit - Black/Multi

€47,95 Sold out

Speedo

Medley Logo Medalist Swimsuit - Black/Coral Orange

€38,95 Sold out

Rated 5.0 out of 5

Based on 1 review

Aquasphere - Limited Edition Essential Diamond Back Swimsuit - Navy/Pink - Model Front

Aquasphere - Limited Edition Essential Diamond Back Swimsuit - Navy/Pink - Model Front

On Sale

Aqua Sphere

Limited Edition Essential Diamond Back Swimsuit - Navy/Pink

€47,95 Sold out

SP-81219917597-hyperboom-allover-medalist-AF-black_purple_front

SP-81219917597-hyperboom-allover-medalist-AF-black_purple_front

Speedo

Hyperboom Allover Medalist Swimsuit - Black/Purple

€47,95 Sold out

Rated 4.5 out of 5

Based on 2 reviews

Funkita - Womens Lost Ocean Diamond Back Swimsuit - Multi - Model Front

Funkita - Womens Lost Ocean Diamond Back Swimsuit - Multi - Model Front

Funkita

Lost Ocean Diamond Back Swimsuit - Multi

€55,95 Sold out

Speedo-SP-800372516243-Speedo-HyperboomSplice-Racerback-Black_Turquoise-AF-Simply-Swim

Speedo-SP-800372516243-Speedo-HyperboomSplice-Racerback-Black_Turquoise-AF-Simply-Swim

Speedo

HyberBoom Splice Racerback Swimsuit - Black/Turquoise

€47,95 Sold out

Rated 4.0 out of 5

Based on 1 review

Speedo - Womens Essential Watershort - Red - Model Front Close Up

Speedo - Womens Essential Watershort - Red - Model Front Close Up

Speedo

Womens Essential Watershort - Red

€25,95 Sold out

Zoggs - Elegance Front Crossover V Back Swimsuit - Blue/Multi - Model Front

Zoggs - Elegance Front Crossover V Back Swimsuit - Blue/Multi - Model Front

On Sale

Zoggs

Elegance Front Crossover V Back Swimsuit - Blue/Multi

€47,95 Sold out

Speedo - Hyperboom Allover Medalist Swimsuit - Black/Green - Model Front

Speedo - Hyperboom Allover Medalist Swimsuit - Black/Green - Model Front

Speedo

Hyperboom Allover Medalist Swimsuit - Black/Green

€47,95 Sold out

Speedo-Hyperboom Splice Flyback Women_Front-Model

Speedo-Hyperboom Splice Flyback Women_Front-Model

On Sale

Speedo

Hyperboom Splice Flyback Swimsuit - Navy/Pink

€41,95 Sold out

Rated 4.5 out of 5

Based on 2 reviews

Speedo - Shaping Printed Splice Swimsuit - Green - Model Front

Speedo - Shaping Printed Splice Swimsuit - Green - Model Front

Speedo

Shaping Printed Splice Swimsuit - Green

€53,95 Sold out

Funkita-FU-FKS033L72067-tetra-tonic-Simply-Swim-front

Funkita-FU-FKS033L72067-tetra-tonic-Simply-Swim-front

Funkita

Tetra Tonic Diamond Back Swimsuit - Blue

€54,95 Sold out

Funkita - Bolted Diamond Back Swimsuit - Blue/Yellow - Model Front

Funkita - Bolted Diamond Back Swimsuit - Blue/Yellow - Model Front

Funkita

Bolted Diamond Back Swimsuit - Blue/Yellow

€55,95 Sold out

Previous
1 2 3 4
Page 4 of 4
Next

By signing up you are giving your consent for us to email you product information and exclusive offers from Simply Swim. You can withdraw your consent at any time by unsubscribing at the bottom of any email we send you. You will not receive any communication from any third parties.

Simply Swim uses cookies to ensure that we give you the best experience on our website. If you continue we assume that you consent to receive all cookies on Simply Swim. Read More

Top