Ultimate Boost post

Experience an immediate and natural lift – without bulky bras.

✔️ Lasts all day, waterproof and sweat-resistant
✔️ Fits all types of bras and outfits
✔️ Provides an immediate volume increase – up to 2 cup sizes

Spain's bestseller - now finally in Sweden!

Proven by over 280,000 satisfied women worldwide.

Rating: 4.9/5 from more than 1,000 reviews.

$21.00 USD

~~$27.00 USD~~ $21.00 USD

Sale Sold out

Taxes included. Shipping calculated at checkout.

Size A B C D/E/F

Paint Beige Black

In stock

Summer invites open backs, thin tops and dresses that breathe freedom.

But sometimes self-esteem can plummet – perhaps after breastfeeding, pregnancy, or just days when your shape doesn't feel the way you want it to.

Ultra Boost Inserts from Silkure gives you an immediate natural lift – and up to two cup sizes more, completely without underwires, padding or visible edges.
Discreet and comfortable, they shape your silhouette softly and naturally, so you can wear what you love with confidence and ease.

It is no coincidence that over 280,000 women in Spain already chose Ultra Boost – one best seller year after year, known for its stylish Spanish design and uncompromising comfort.
Now it's finally here in Sweden – ready to give you the freedom to dress how you want, feel like yourself, and own every moment.

Perfect for you who:

Want to avoid wearing a bra but still get support and shape.
Want to feel safe and comfortable in open, thin garments.
Want to rediscover a silhouette you love – on your terms.

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The result speaks for itself:

Perfect curves, instantly.

✅ Perfect lift in seconds
Get natural curves and a sleek silhouette – instantly and effortlessly.

✅ Invisible under all clothing
Seamless fit that blends in – no one will notice.

✅ Sits where you want it
Withstands water, sweat and movement – lasting comfort all day long.

✅ Use over and over again
Easy to clean and reuse – always ready for the next adventure.

Strengthen your silhouette - quickly and easily

Do you see the difference?
It could be YOU!

Whether it's a date night, a day at the beach, or just when you want to feel amazing –
These posts will give you the boost and confidence you've always dreamed of.

95% – Confidence boost
Stated that their self-confidence increased immediately.

94% – Natural lift
Noticed a natural and flattering lift in her silhouette.

90% – All-day comfort
Felt more comfortable and safe all day.

Thousands of women enjoy the freedom of going bra-free – and love how comfortable, natural and beautiful they feel every day.

How do I choose the right size?

Choose the same size as your usual size Bra cup:

A – for you with an A cup
B – for you with a B cup
C – for you with a C cup
D – for those with a D cup or larger

❗ Between two sizes? It's better to choose the larger one – it shapes more evenly and gives a more natural lift.

Questions? We have the answers!

How it works?

It's easy! Remove the protective film and place the inserts in your bra, swimsuit or directly in your clothes. Adjust for perfect comfort - and you're ready to shine!
✔️ Reusable
✔️ Easy to clean

Is it convenient?

Absolutely!
The feather-light and soft design means you'll barely notice you're wearing them – even after many hours of use.

Can they be seen through the clothes?

Not at all!
Our ultra-thin and seamless technology makes the inserts completely invisible under any clothing – no one will know!

Do they improve my figure?

Yes!
UltimateBoost inserts lift and shape the bust naturally and visually increase your cup size by up to two levels, for a perfect silhouette and increased confidence.

Shipping & Delivery

We offer fast and safe delivery.
As soon as your order is shipped, you will receive a tracking number so you can easily follow your package.

Return & Refund Policy

Shop with confidence – 60-day money-back guarantee! We want you to love your order. If you change your mind within 60 days, we will arrange a smooth return.

I don't like wearing a bra, especially in the summer. These inserts make me feel comfortable and confident.

bought these in Madrid maybe 5 years ago and searched longer for the same in Sweden. have tried 2 different ones from Hm but they were crap, these from varuzone are ok! used over 30 times for sure and they still stick perfectly and give fantastic lift

The B cup fit me perfectly as I am a size 80B! I have now bought another one in black size for my bikinis!

incredibly satisfied!

easy to apply and they didn't come off even after a whole night out

Sat in place and didn't move a millimeter all day

Really gives two extra cup sizes as they promise. Perfect for tight dresses and tops.

Country/Region

Ultimate Boost post