FABRICS GUIDE
SEFI premium fabrics are carefully selected for high performance with sophisticated style that ensures durability and elegance offering a luxurious approach to activewear.
SEFI fabrics keep you feeling confident & comfortable, effortlessly transitioning you from workout to casual stylish outings.
Every component of our products, from the fabric to the thread and accessories, has been rigorously tested against a list of up to 350 toxic chemicals. PFAS free, non toxic.
Our fabrics undergo many strict tests including:
Anti-pilling based on 2500 rpm abrasion. 4 way stretch. Colour fastness for washing, sweat & rubbing.
Quality control tests over all aspects of production.
active
BUTTERLUXE
timeless
waffle
define
silhouette
effortless
ESSENTIALS
ACtive
High-energy performance meets sleek versatility.
The Details
- Cut & sew, smooth, durable, body contouring fabric that hugs curves for a sculpted look.
- 4-way stretch, never loses shape & squat proof.
- Antibacterial, breathable, sweat-wicking & quick drying.
- Ultra-soft, second skin feel. Made to keep up with your most active days.
- Anti-pilling, high performance colour fastness resistance.
- Mix of Nylon & Spandex.
WHat am I best FOR?
Perfect for high-energy workouts like running, spin, HIIT, weight training. Designed to take you from intense gym sessions to on-the-go errands with effortless style.
size & fit
- True to size.
- Medium weight & medium compression.
ACtive
High-energy performance meets sleek versatility.
NEW IN
30% OFF
sculpting shape
Quick Add
XS
S
M
L
XL
£58.80
£84.00
NEW IN
30% OFF
sculpting v-waist
pockets
Quick Add
XS
S
M
L
XL
£50.40
£72.00
NEW IN
30% OFF
sculpting & supportive
Quick Add
XS
S
M
L
XL
£32.20
£46.00
NEW IN
30% OFF
sculpting v-waist
pockets
Quick Add
XS
S
M
L
XL
£50.40
£72.00
NEW IN
30% OFF
sculpting & supportive
Quick Add
XS
S
M
L
XL
£33.60
£48.00
30% OFF
sculpting shape
Quick Add
XS
S
M
L
XL
£58.80
£84.00
30% OFF
sculpting shape
Quick Add
XS
S
M
L
XL
£58.80
£84.00
30% OFF
sculpting & supportive
Quick Add
XS
S
M
L
XL
£33.60
£48.00
30% OFF
sculpting v-waist
pockets
Quick Add
XS
S
M
L
XL
£50.40
£72.00
BUTTERLUXE
Smoother than butter, the ultimate luxury fabric
The Details
- Seamless & smoothing with subtle contouring details to enhance your shape.
- Smoother than butter material that feels like a second skin.
- Antibacterial, breathable & quick drying.
- Lightweight & light compression.
- Backed by a no-pilling guarantee.
- Mix of polyamide & spandex.
WHat am I best FOR?
Your go-to fabric for low impact workouts from pilates to yoga, barre to brunch and all the moments between.
size & fit
- True to size, size up if between sizes.
- Lightweight & light compression.
BUTTERLUXE
Smoother than butter, the ultimate luxury fabric
20% OFF
NEW IN
body contouring
Quick Add
XS
S
M
L
XL
£43.20
£54.00
20% OFF
no-pilling guarantee
Quick Add
XS
S
M
L
XL
£57.60
£72.00
20% OFF
no-pilling guarantee
Quick Add
XS
S
M
L
XL
£57.60
£72.00
20% OFF
sculpting & supportive
Quick Add
XS
S
M
L
XL
£36.80
£46.00
20% OFF
no-pilling guarantee
Quick Add
XS
S
M
L
XL
£57.60
£72.00
20% OFF
sculpting & supportive
Quick Add
XS
S
M
L
XL
£36.80
£46.00
20% OFF
no-pilling guarantee
Quick Add
XS
S
M
L
XL
£57.60
£72.00
20% OFF
sculpting ruched waist
Quick Add
XS
S
M
L
XL
£57.60
£72.00
20% OFF
sculpting ruched waist
Quick Add
XS
S
M
L
XL
£57.60
£72.00
20% OFF
no-pilling guarantee
Quick Add
XS
S
M
L
XL
£57.60
£72.00
Timeless
Sculpting & supportive in gym, sleek on the street. “Feel supported but naked.”
The Details
- Seamless, sculpting & smoothing with subtle contouring detail to enhance your natural shape.
- Soft, antibacterial, breathable & quick drying.
- 4 way stretch, never loses shape & squat proof.
- Mix of Polyamide & Spandex.
- Backed by no-pilling guarantee.
WHat am I best FOR?
Meet your go-to for everything from pilates class, gym, spin class to brunch and all the moments between.
size & fit
- True to size.
- Medium weight & compression.
Timeless
Sculpting & supportive in gym, sleek on the street. “Feel supported but naked.”
20% OFF
no-pilling guarantee
Quick Add
XXS
XS
S
M
L
XL
£57.60
£72.00
20% OFF
squat proof
Quick Add
XXS
XS
S
M
L
XL
£57.60
£72.00
20% OFF
sculpting waist
Quick Add
XXS
XS
S
M
L
XL
£41.60
£52.00
20% OFF
no-pilling guarantee
Quick Add
XXS
XS
S
M
L
XL
£57.60
£72.00
Waffle
Smoothing sculpting waffle texture like no other.
The Details
- Seamless, sculpting & smoothing with unique waffle details.
- Super-soft, antibacterial, breathable & quick drying.
- 4 way stretch, never loses shape & squat proof.
- Mix of Polyamide & Spandex.
- Backed by no-pilling guarantee.
WHat am I best FOR?
Turning heads and stylish workouts or running errands.
size & fit
- True to size.
- Medium weight & compression.
Waffle
Smoothing sculpting waffle texture like no other.
30% OFF
unique style
Quick Add
XS
S
M
L
XL
£32.20
£46.00
30% OFF
unique style
Quick Add
XS
S
M
L
XL
£32.20
£46.00
30% OFF
unique style
Quick Add
XS
S
M
L
XL
£32.20
£46.00
define
Ultra soft, smooth cool feel and very comfortable - like wearing a hug.
The Details
- Cut & sew, stretchy body contouring fabric that hugs curves for a sleek and sculpted look.
- Smoother than butter material that feels like a second skin.
- 4 way stretch, never loses shape & squat proof.
- Mix of Nylon & Spandex.
- Backed by no-pilling guarantee.
WHat am I best FOR?
Sleek with a cool touch, this fabric is best for medium to high impact workouts, weight training, spin, HIIT, & so much more.
size & fit
- True to size.
- Light to Medium weight & compression.
define
Ultra soft, smooth cool feel and very comfortable - like wearing a hug.
FINAL SALE £20
bum enhancing
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
buttery-soft
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
buttery-soft
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
sculpting v-waist
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
buttery-soft
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
bum enhancing
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
Silhouette
A whole new level of style - wearing your silhouette.
The Details
- Cut & sew, stretchy, body contouring fabric that hugs curves for a sleek and sculpted look.
- Smoother than butter material that feels like a second skin
- Antibacterial, breathable & quick drying.
- Mix of Nylon & Spandex.
- Backed by no-pilling guarantee.
WHat am I best FOR?
Compliments. This fabric is best for medium to high impact workouts, weight training, spin, HIIT, & so much more.
size & fit
- True to size.
- Lightweight with medium compression.
Silhouette
A whole new level of style - wearing your silhouette.
FINAL SALE £20
style & comfort
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
style & comfort
Quick Add
XS
S
M
L
XL
£20.00
£42.00
FINAL SALE £20
silhouette detail
Quick Add
XXS
XS
S
M
L
XL
£20.00
£62.00
FINAL SALE £20
style & comfort
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
style & comfort
Quick Add
XXS
XS
S
M
L
XL
£20.00
£46.00
FINAL SALE £20
body smoothing
Quick Add
XXS
XS
S
M
L
XL
£20.00
£62.00
FINAL SALE £20
body smoothing
Quick Add
XXS
XS
S
M
L
XL
£20.00
£62.00
Effortless
Luxurious barely there lingerie.
The Details
- Molds seamlessly to your curves. Invisible under clothing.
- The ultimate combination of comfort & style, it's the perfect versatile base layer.
- Super-soft & lightweight, antibacterial, breathable & quick drying.
- Mix of Polyamide & Spandex.
- Backed by no-pilling guarantee.
WHat am I best FOR?
Feel ultra confident & sexy. Moving effortlessly with you during workouts, lounging and everyday life.
size & fit
- True to size.
Effortless
Luxurious barely there lingerie.
Essentials
All day comfort and style.
The Details
- Super-soft signature fabric made for the ultimate comfort.
- Mix of Modal & Cotton.
WHat am I best FOR?
From lounging in the mornings to unwinding in the evening, this fabric keeps you cosy in style.
size & fit
- True to size.
Essentials
All day comfort and style.
FINAL SALE £20
cosy in style
Quick Add
XS
S
M
L
XL
£20.00
£54.00
FINAL SALE £20
all-day style
Quick Add
XS
S
M
L
XL
£20.00
£42.00
