Why 150,000+ women love us
- Aliia
Verified Buyer ✔️
Perfect top
Perfect fit especially now that the warmer weather is starting. Definitely the perfect option for a running top.
- Dina
Verified Buyer ✔️
- Jenna
Verified Buyer ✔️
Beautiful and very comfy!...
Beautiful and very comfy! Thank you xx
- Azgi
Verified Buyer ✔️
High quality and super impressed
The material is incredibly soft and moulds to your skin beautifully so that it feels weightless and leaves your movement unlimited. The clever design means the top always feels secure in place and so you can get on with your workout without constantly worrying about adjusting or slippage!
- Annabel
Verified Buyer ✔️
Material has changed but still nice
Nice fit, nice color and true to size!
- Amelia
Verified Buyer ✔️
Hot! Hot! Hot!
This is my new favorite set. So flattering and makes me feel confident, sexy, and in shape.
- Isabel
Verified Buyer ✔️
My favorite ever jacket!
My favorite running / working out jacket so far!! So stylish and comfortable! I just feel great whenever I wear it!
- Oyuntuya
Verified Buyer ✔️
Obsessed with the fit
It's cropped at the perfect place to make your figure look amazing. Quality is perfect as always with SEFI. The fabric is cool to the touch and soft. Please release it in more colours <3
- Ella
Verified Buyer ✔️
I like the design...
I like the design though xs is a bit too big. Maybe there could be more compression. Colour and design is great. It looks very flattering.
- Sarune
Verified Buyer ✔️
Super flattering and looove...
Super flattering and looove this colour!
- Talia
Verified Buyer ✔️
Gorgeous colour and fits...
Gorgeous colour and fits perfect
- Jess
Verified Buyer ✔️
sooo comfy! My new...
sooo comfy! My new favorite for lower body!
- Maria
Verified Buyer ✔️
- Maria
Verified Buyer ✔️
Tiny
They were very small for their size, and they seaming pulled in transit. For the price point they could have been made better. I feel this brand is only meant for the skinny folks 😕
- Fiona
Verified Buyer ✔️
- Maria
Verified Buyer ✔️
Gorgeous feel and fit. And super light which is excellent for running.
Gorgeous feel and fit!
- Emma
Verified Buyer ✔️
- Cristal
Verified Buyer ✔️
The softest material I...
The softest material I don’t know how they do it but this collection is elite🤌🏽
- manuela
Verified Buyer ✔️
- Alyssa
Verified Buyer ✔️
Gorgeous top
Beautiful design I love this top i have all the colors
- Futoon
Verified Buyer ✔️
Can't believe it's £20
Still can't believe this is £20. I get so many compliments when I wear this. It's my favourite thing in the wardrobe atm.
- Ella
Verified Buyer ✔️
A change for the worse..
The fit is just not it anymore. Bought this exact top 2-3 years ago in one of the original colors and the fit was just perfect. The material was thick and it had a nice compression. Don’t know what happened but some time back the material in the timeless collection changed. It’s still comfortable and smooth but it’s much thinner and lacks the compression it once had. This is especially clear when it comes to the long sleeve top as the fit is much different, e.g., saggy in the back. Really disappointed by this change.
- Amelia
Verified Buyer ✔️
- Isabel
Verified Buyer ✔️
- Henry
Verified Buyer ✔️
- Maria
Verified Buyer ✔️
- Benedetta
Verified Buyer ✔️
Absolutely love it
Absolutely love the feel and look of this jacket. It's so lightweight and breathable it's perfect for this weather and playing sports. Slate Gray is so stylish
- Ella
Verified Buyer ✔️
The most perfect top
This top is sooo beautiful. I own every colour! I sized up to a medium and wear the curved bra underneath when I want more coverage. So soft and comfy.
- Ella
Verified Buyer ✔️
the most beautiful colour!...
the most beautiful colour! I'd suggest sizing down, fits a bit bigger than usual.
- Jesse
Verified Buyer ✔️
- Azgi
Verified Buyer ✔️
- Benedetta
Verified Buyer ✔️
- Futoon
Verified Buyer ✔️
Confidence booster!
The shape and fit are super flattering. They contour beautifully. Love the colour.
- Jenna
Verified Buyer ✔️
So soft, so sexy,...
So soft, so sexy, so feminine, so comfortable, so cool and easy to style. Loooooove it
- Katarzyna
Verified Buyer ✔️
Stays in place!
The only headband that stays in place! I went on a 2 mile run and it didn’t budge!
- Julianna
Verified Buyer ✔️
It is not favourite...
It is not favourite leggings since there isnt that much of compression. Seems quite secure from the bottom until thighs, though hips and bum arent as supported. I think I prefer timeless leggings material. Colour is lovely and details looks nice.
- Sarune
Verified Buyer ✔️
- Jess
Verified Buyer ✔️
Perfect shorts for Pilates...
Perfect shorts for Pilates or yoga. Love the colour!
- manuela
Verified Buyer ✔️
Perfect fit
They fit perfectly! Love how they feel like a second skin
- Amra
Verified Buyer ✔️
Sculpts the thighs and...
Sculpts the thighs and booty perfectly! Love wearing to do yoga or Pilates! Highly recommend!!
- Julianna
Verified Buyer ✔️
- Jenna
Verified Buyer ✔️
- Rachael
Verified Buyer ✔️
Very flattering and great...
Very flattering and great quality leggings! Pleased with my choice xx thank you !
- Azgi
Verified Buyer ✔️
It’s really comfy and...
It’s really comfy and flattering. The only thing is after the first wash it started pilling which is disappointing
- Cristal
Verified Buyer ✔️
Perfect fit and great quality
Always an amazing fit and wonderful quality - I wear and wash this multiple times a week and it still looks good as new
- Clodagh
Verified Buyer ✔️
- Azgi
Verified Buyer ✔️
Great quality as always
Lovely leggings but unfortunately too short in the leg for me as I’m 5 foot 8.
- Rhiannon
Verified Buyer ✔️
Love the color and material
I really love this bra! The reason I gave it 4 stars is I would love to have the choice of padding to remove or keep in since sometimes my girls show when its cold! Otherwise I love the material and it moves well with me.
- Emily
Verified Buyer ✔️
- Sheylla
Verified Buyer ✔️
- Aliia
Verified Buyer ✔️
Perfect top
Perfect fit especially now that the warmer weather is starting. Definitely the perfect option for a running top.
- Dina
Verified Buyer ✔️
- Jenna
Verified Buyer ✔️
Beautiful and very comfy!...
Beautiful and very comfy! Thank you xx
- Azgi
Verified Buyer ✔️
High quality and super impressed
The material is incredibly soft and moulds to your skin beautifully so that it feels weightless and leaves your movement unlimited. The clever design means the top always feels secure in place and so you can get on with your workout without constantly worrying about adjusting or slippage!
- Annabel
Verified Buyer ✔️
Material has changed but still nice
Nice fit, nice color and true to size!
- Amelia
Verified Buyer ✔️
Your everyday activewear, elevated.
Designed for the gym.
Styled for the street.
“Years of struggling to find stylish high performance activewear that made me feel sexy and confident led me to create SEFI.
SEFI is a mission beyond clothing. In SEFI you are confident, powerful & sexy.
We're at our best when you feel yours.
Let SEFI take you on an adventure."
FOUNDER, STEF WILLIAMS
WHAT ARE YOU LOOKING FOR?




EFFORTLESS LINGERIE
buy 2 get 1 free:Beautiful yet functional, our Effortless Lingerie was designed for everyday elegance.
find your perfect fabric
“Makes working out a dream”
“This is by far the most flattering gym kit I own”
“Stylish designs you’ll want to wear for more than just an exercise class”
“A flattering silhouette that would fit in just as well at cocktail night with the girls as it does in the gym”
“Workout clothing and co-ord sets to have you looking and feeling your best while you exercise!”
“Stylish designs you’ll want to wear for more than just an exercise class”
“The leggings felt really secure and sculpted in all the right places. They earned a big tick from moi”
“I’ve owned this pair of leggings for around nine months, and they’ve become a wardrobe staple”



