SmoothFit Bra

Lift & Support

SmoothFit Boyleg

Low Rise & Stretch

SmoothFit Thong

Everyday Comfort

SmoothFit Bikini Brief

Moderate Coverage

SmoothFit Full Brief

Full Coverage

Bikini Brief

Classic Cut

Body Short

Lounging

Shop Mens

For Him

Boxer Brief

Thicker Legs

Trunk

Thinner Legs

Boxer Brief Fly

Easy Access

Boxer Brief Sport

Longer For Activity

Long Johns

Full Length

Junior Trunk

Ages 6 - 14

Shop Womens

For Her

SmoothFit Bra

Lift & Support

SmoothFit Boyleg

Low Rise & Stretch

SmoothFit Thong

Everyday Comfort

SmoothFit Bikini Brief

Moderate Coverage

SmoothFit Full Brief

Full Coverage

Bikini Brief

Classic Cut

Body Short

Lounging

Shop Mens

For Him

[EXP-A] Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Yolanda
Yolanda is 170cm tall, 70cm waist, wearing a size S
Women's SmoothFit Bikini Brief - Grey - Bamboo Underwear
Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Yolanda
Yolanda is 170cm tall, 70cm waist, wearing a size S
Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Yolanda
Yolanda is 170cm tall, 70cm waist, wearing a size S
Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Yolanda
Yolanda is 170cm tall, 70cm waist, wearing a size S
Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Ashleigh
Ashleigh is 174cm tall, 90cm waist, wearing a size XL
Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Ashleigh
Ashleigh is 174cm tall, 90cm waist, wearing a size XL
IN STOCK
X

30 Day First Pair Guarantee

We are so confident that you'll love your Step Ones...

We'll give you a FULL REFUND on your FIRST PAIR

If you don't like them for whatever reason

SmoothFit Bikini Brief - Grey

£15.90LOW AS £5.73

SmoothFit

 Bikini Brief
(376)

£15.90LOW AS £5.73
BUY EXTRA FREE PAIRS TOTAL PAIRS $ PER PAIR
8 10 + FREE 👕 🔥 18 🔥 £5.73
4 3 7 £8.51
3 1 4 £11.17

Colour: Grey

Colours:
[EXP-A] Women's SmoothFit Bikini Brief - Espresso-Tini - Bamboo Underwear - Model:Elke
[EXP-A] Women's SmoothFit Bikini Brief - Piña Colada - Bamboo Underwear - Model:Elke
[EXP-A] Women's SmoothFit Bikini Brief - Chic Champagne - Bamboo Underwear - Model:Elke
[EXP-A] Women's SmoothFit Bikini Brief - Rosé All Day - Bamboo Underwear - Model:Elke
[EXP-A] Women's SmoothFit Bikini Brief - Blue Lagoon - Bamboo Underwear - Model:Elke
Women's SmoothFit Bikini Brief - Paradise Green - Bamboo Underwear
Women's SmoothFit Bikini Brief - Viva Magenta - Bamboo Underwear
Women's SmoothFit Bikini Brief - Rose Violet - Bamboo Underwear
Women's SmoothFit Bikini Brief - Peach Cheeks - Bamboo Underwear
Women's Seamless Underwear at Step One
Women's SmoothFit Bikini Brief - Mint - Bamboo Underwear
[EXP-A] Women's SmoothFit Bikini Brief - Sunset Spritz - Bamboo Underwear - Model:Elke
[EXP-A] Yellow Seamless Bamboo Underwear - Model:Elke
[EXP-A] Purple Seamless Underwear Step One - Model:Elke
Women's SmoothFit Bikini Brief - Sage - Bamboo Underwear
[EXP-A] Women's SmoothFit Bikini Brief - Ultimate Grey - Bamboo Underwear - Model:Yolanda
[EXP-A] Marlin Blue Seamless Underwear - Model:Natalia
[EXP-A] Women's SmoothFit Bikini Brief - Rooibos - Bamboo Underwear - Model:Natalia
Women's SmoothFit Bikini Brief - Chambray - Bamboo Underwear
[EXP-A] Women's SmoothFit Bikini Brief - Wave Ride - Bamboo Underwear - Model:Yolanda
Size:

Women's Size Guide SmoothFit
Example: If you usually wear a medium, we recommend ordering a small.

SIZE

AU SIZE

UK SIZE

WAIST (cm)

XS

04-06

00-02

60

Small

08-10

04-06

64

Medium

12-14

08-10

68

Large

16-18

12-14

72

XL

20-22

16-18

76

2XL

24-26

20-22

80

At Step Ones, we are incredibly confident that you'll adore your purchase. However, we understand that personal preferences vary, and if, for any reason, you don't like your first opened and worn pair, we'll be more than happy to provide you with a full refund. Customer satisfaction is our top priority, and we want you to feel completely at ease when shopping with us.

Even if you accidentally picked the wrong size, don't worry – we've got you covered! In addition to our first pair guarantee, we extend returns and exchanges to all unopened products. We want to ensure that you find the perfect fit and are completely satisfied with your Step Ones experience. Your comfort and happiness are essential to us, and we strive to make the entire process seamless and enjoyable. Shop with confidence and know that we're here to assist you every step of the way.

Our bikini brief range runs on the larger side. If you are unsure or in between sizes, we recommend sizing down.

Frequently purchased together...

SmoothFit
Bikini Brief Espresso-Tini
LOW AS £5.73
£15.90

SmoothFit
Bikini Brief Chic Champagne
LOW AS £5.73
£15.90

SmoothFit
Bikini Brief Rosé All Day
LOW AS £5.73
£15.90

SmoothFit
Bikini Brief Blue Lagoon
LOW AS £5.73
£15.90

Welcome to a world of comfort

Your new favourites

Crafted with care and designed for maximum comfort, these underwear are a game-changer in the world of intimates. Made from bamboo viscose, a natural and eco-friendly fabric, our ribbed seam free underwear offers a seamless and irritation-free experience.

Say goodbye to muffin top

The seamless waist construction eliminates any irritating seams that could dig into your skin, making these underwear ideal for everyday wear, workouts, or lounging. The bamboo viscose fabric is incredibly soft to the touch and naturally moisture-wicking, keeping you fresh and dry throughout the day.

Undies that love the planet

Bamboo is a renewable resource that grows rapidly and requires minimal water and pesticides. It also has natural anti-bacterial properties, reducing the need for chemical treatments. By choosing our bamboo viscose underwear, you're making a conscious decision to support eco-friendly practices.

Trustpilot

You may also like

[EXP-A] Women's SmoothFit Padded Bra - Espresso-Tini - Bamboo Underwear - Model:HollyWomen's SmoothFit Padded Bra - Espresso-Tini - Bamboo Underwear
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LOW AS £9.33
£24.00
[EXP-A] Women's SmoothFit Full Brief - Blue Lagoon - Bamboo Underwear - Model:ElkeWomen's SmoothFit Full Brief - Blue Lagoon - Bamboo Underwear
Women's SmoothFit Full Brief - Blue Lagoon
LOW AS £6.17
£16.90
[EXP-A] Women's SmoothFit Full Brief - Chic Champagne - Bamboo Underwear - Model:ElkeWomen's SmoothFit Full Brief - Chic Champagne - Bamboo Underwear
Women's SmoothFit Full Brief - Chic Champagne
LOW AS £6.17
£16.90
[EXP-A] Espresso-Tini - Bamboo- Model:ElkeWomen's SmoothFit Full Brief - Espresso-Tini - Bamboo Underwear
Women's SmoothFit Full Brief - Espresso-Tini
LOW AS £6.17
£16.90
[EXP-A] Women's SmoothFit Full Brief - Piña Colada - Bamboo Underwear - Model:ElkeWomen's SmoothFit Full Brief - Piña Colada - Bamboo Underwear
Women's SmoothFit Full Brief - Piña Colada
LOW AS £6.17
£16.90
[EXP-A] Women's SmoothFit Full Brief - Rosé All Day - Bamboo Underwear - Model:ElkeWomen's SmoothFit Full Brief - Rosé All Day - Bamboo Underwear
Women's SmoothFit Full Brief - Rosé All Day
LOW AS £6.17
£16.90
[EXP-A] Women's SmoothFit Thong - Blue Lagoon - Bamboo Underwear - Model:ElkeWomen's SmoothFit Thong - Blue Lagoon - Bamboo Underwear
Women's SmoothFit Thong - Blue Lagoon
LOW AS £4.84
£13.90
[EXP-A] Women's SmoothFit Thong - Chic Champagne - Bamboo Underwear - Model:ElkeWomen's SmoothFit Thong - Chic Champagne - Bamboo Underwear
Women's SmoothFit Thong - Chic Champagne
LOW AS £4.84
£13.90
[EXP-A] Women's SmoothFit Thong - Espresso-Tini - Bamboo Underwear - Model:ElkeWomen's SmoothFit Thong - Espresso-Tini - Bamboo Underwear
Women's SmoothFit Thong - Espresso-Tini
LOW AS £4.84
£13.90
[EXP-A] Women's SmoothFit Thong - Piña Colada - Bamboo Underwear - Model:ElkeWomen's SmoothFit Thong - Piña Colada - Bamboo Underwear
Women's SmoothFit Thong - Piña Colada
LOW AS £4.84
£13.90
[EXP-A] Pink Thong G String Underwear - Model:ElkeWomen's SmoothFit Thong - Rosé All Day - Bamboo Underwear
Women's SmoothFit Thong - Rosé All Day
LOW AS £4.84
£13.90

First Pair Guarantee

We are so confident you'll love your Step Ones, we'll give you a full refund on your first opened and worn pair if you don't like them for any reason.

Free shipping on all orders!

Free shipping on all orders in the UK... how good!

Customer Service

Buy with confidence, our dedicated customer service team is available 24/7 to answer any questions you have!

Easy Returns

Picked the wrong size by mistake? No problem. On top of our first pair guarantee we also offer returns/exchanges on all unopened products.