"Alexandra" Briefs – Invisible Bonding Innovation

Femme avec brassière sans couture confortable pour femme haut de gamme

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Marie-Louise is 5'9" and wears a size S

"Alexandra" White Seamless Cotton Briefs

Coton-Elasthanne

"Alexandra" Briefs – The Innovation of Invisible Bonding

€20,00 EUR

Size XS S M L XL

ColorBlanc Lait

Fabric Coton-Elasthanne

The Invisible Bonding Revolution
The "Alexandra" seamless Pima cotton briefs is not just underwear; it's a technological marvel. Thanks to high-precision bonding assembly, we have eliminated every thread and every edge. This technique allows for a perfect fusion of layers, creating an exceptionally fine piece that becomes one with your body.

The Luxury of Pima Fiber
Unlike classic invisible underwear, which is often synthetic, the Alexandra prioritizes natural materials:
81% Pima Cotton: dubbed "the silk of cottons," Pima offers exceptional softness, breathability, and hypoallergenic properties.
19% Elastane: a precise dosage to guarantee shape retention and impeccable hold throughout the night.
Zero Edges, Zero Seams: the bonded assembly eliminates any bulk, making the brief completely undetectable, even under the softest Leandra pajama pants. The absolute purity of a milky white, soft and timeless. This shade highlights the perfection of our Alexandra seamless brief's bonded assembly, evoking the serenity of freshly washed sheets and the clarity of peaceful mornings.

81% Pima Cotton 19% Elastane
Our Cut Philosophy: Relaxed Grading
At Sunday Sleep Club, nightwear is an architecture dedicated to well-being. Our sets have been developed with a deliberately generous and oversized pattern to accompany your movements fluidly, without ever restricting the body.
• For a flowing and relaxed fit (Signature Style): Choose your usual size.
• For a more fitted or body-hugging look: We invite you to select one size down from your usual size.
For lingerie essentials, I enlisted the expertise of a French brand renowned for its 150 years of savoir-faire.
Shorts, bralettes, and tank tops made from the finest "Pima" cotton, with a hint of elastane for perfect comfort. Seamless. Laser-cut edges.
For the bralette, the bust shape was molded into the fabric to prevent flattening, ensuring absolute comfort.
This line was designed to be your sleep companion.

Size guide

We prepare and ship your orders with care to ensure a fast and reliable experience. If an item does not suit you, you can easily return it according to our return policy.

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OUR COMMITMENT

THE PROMISE
SUNDAY SLEEP CLUB.

FINE MATERIALS

Mulberry silk, certified organic cotton or premium satin: we only select high-quality materials for absolute comfort, night after night.

RESPONSIBLE MANUFACTURING

European workshops with fair conditions. Zero overproduction — every piece is made just right.

TIMELESS DESIGN

Clean cuts designed to last. Luxury in simplicity — fewer pieces, but the right ones.

DISCOVER OUR COLLECTIONS

SLEEP AS YOU ARE

Because every individual has their own way of resting, we design nighttime essentials that respect your style, your body, and your rhythm.

YOUR QUESTIONS

How to choose my pajamas

Consult our size guide and material guide to find the perfect sleepsuit for your child's sleep habits.

What sizes are available?

Our collections range from XS to XL. We manually grade our sizes on a wide variety of body types.

What is the composition of my coins?

GOTS mulberry silk, organic pima cotton, organic washed linen. The exact composition is detailed on each product page.

How to care for silk?

Delicate wash at 30° or hand wash. Dry flat. Iron at low temperature inside out.