Sia Underwear

Indulge in serene nights and peaceful mornings with our Cotton Nightdress in Powder Romance. Merging comfort with elegance, this nightdress is the perfect choice for your relaxation.

Crafted from soft, stretch cotton, it provides unparalleled comfort and freedom. Delicate lace detailing on the short sleeves and V-neckline adds a refined, feminine touch. The gentle powder color further enhances its elegance.

Ideal for both restful sleep and lounging at home, this nightdress doubles as a stylish and comfortable house dress. Made in Bulgaria by SIA Underwear, it offers gentle care and comfort throughout the night.

• Soft and stretch cotton for supreme comfort
• Exquisite lace for a feminine accent
• Comfortable fit, perfect for sleeping and relaxing

Experience gentle comfort all night long with our ash-colored Romance cotton nightdress. Perfect for relaxing at home, this nightdress is made from soft, elastic cotton for ultimate comfort and freedom of movement.

The delicate lace detailing on the short sleeves and V-neckline adds a touch of elegance. Its beautiful ash color gives it a sophisticated look.

Made in Bulgaria by SIA Underwear, this versatile design is suitable for both sleeping and lounging.

• Elastic Cotton for Maximum Comfort
• Lace Details for Elegant Look
• Versatile Design: Sleep & Relax

The Romance Cotton Nightdress is the epitome of comfort and elegance for your night's rest. Made from high-quality elastic cotton, it gently embraces your body. The V-neckline, crafted from delicate lace, adds refinement and femininity. Short lace sleeves complete the elegant design. Proudly made in Bulgaria by SIA Underwear.

• Material: Elastic cotton
• Neckline: V-neck with lace
• Color: Bordeaux
• Sleeves: Short, lace

The Cotton Nightdress with Back Lace combines comfort and elegance. This design is perfect for both sleepwear and loungewear, offering you style and convenience.

Made from high-quality cotton and elastane, this elegant nightdress provides a soft and unrestricted fit. The lace details on the back and neckline add a touch of sophistication and femininity.

Featuring a length slightly above the knee, it is comfortable and practical for everyday wear. Ideal for any season!

Made in Bulgaria by SIA Underwear.

• Cotton and elastane
• Lace on the back and neckline
• Length above the knee
• Suitable for loungewear

Experience the luxurious touch of our nude dress slip, primarily designed as a nightgown. Its elegant straight silhouette and delicate lace V-neck, complete with adjustable straps, offer the perfect fit.

• Made from silky-soft, elastic microfiber
• Wide lace at the bottom enhances the feeling of luxury
• Versatile design

Clean-cut mid-rise cotton Brazilian briefs from the Cotton Comfort collection in nude — invisible under thin and light-coloured clothing. 92% cotton and 8% elastane, fine elastics with no marks. Smooth cut with no decorations on either side. Suitable for sensitive skin. Sizes S–2XL.

Mid-rise cotton Brazilian briefs from the Cotton Comfort collection — a discreet cut, invisible under clothing. 92% cotton and 8% elastane provide natural breathability and flexibility that retains shape after repeated washing. Fine elastics leave no marks, suitable for sensitive skin. Sizes S–2XL.

Fresh white women's bikini briefs made from exceptionally fine Italian microfiber with a delicate sheen. The white color symbolizes purity and refinement, while the silky fabric provides an incredible sensation of softness. The model features super slim elastic bands at the waist and front, with no elastic at the back for a flawless silhouette.

Made in Bulgaria by SIA Underwear!

Exquisite dark blue women's bikini briefs made from exceptionally fine Italian microfiber with luxurious silky sheen. The dark blue shade radiates softness and refinement, while the fabric provides an incredible sensation of delicacy on the skin. The model features super slim elastic bands at the waist and front, with no elastic at the back for a flawless silhouette.

Made in Bulgaria by SIA Underwear!

Classic black women's bikini briefs made from exceptionally fine Italian microfiber with a silky sheen. The black color adds elegance and confidence, while the fabric provides an incredible soft touch sensation. The model features super slim elastic bands at the waist and front, with no elastic at the back for a perfect invisible effect. Made in Bulgaria by SIA Underwear!

Made in Bulgaria by SIA Underwear!

Cotton Brazilian panties with high waist in white — a classic for comfort and freshness. Fine elastics fit softly without pinching, while the high waist covers the tummy and provides security. The Brazilian cut flatters the feminine silhouette, and cotton with elastane maintains a feeling of cleanliness.

High-waisted cotton Brazilian panties in nude — invisible under light and sheer clothes. Fine elastics don't dig in or show through, while the high waist covers the tummy and creates a smooth line. The Brazilian cut flatters your curves elegantly, and cotton with elastane ensures all-day comfort.

Experience invisible comfort with high-waisted cotton briefs in nude Cotton comfort. Made from soft cotton with elastane, they blend seamlessly with your skin and remain completely undetectable under any clothing. The high waist provides security, while the breathable fabric keeps you comfortable all day long.

• Nude colour — invisible even under the thinnest fabrics
• High waist — shapes the silhouette without squeezing
• Soft cotton with elastane — gentle on skin, flexible with movement

Experience the perfect blend of comfort and elegance with white high-waisted cotton briefs Cotton comfort. Soft cotton with elastane provides a gentle feel and freedom of movement. The classic white colour is ideal under light clothing, while the high waist creates a smooth silhouette.

• High waist — covers the tummy and provides security
• Breathable cotton fabric — all-day comfort
• White colour — universal choice under any outfit

Luxurious women's beige high-waisted  panties, made of soft and elastic microfiber in combination with beautiful lace:

- absolutely smooth and clean front part with fine elastic,

- the back part is without elastic, finished with lace with a beautiful scallop,

- comfortable and elegant cut with a wide side part, covering the hips,

- beige color.

Made in Bulgaria by SIA Underwear!

Luxurious panties  in black color with depth to the waist, made of elastic and very soft microfiber and delicate lace:

- clean front part with super fine elastics,

- back part without elastics, finished with lace with a soft lace,

- medium depth of the model,

- black color.

Made in Bulgaria by SIA Underwear!

IRIS Set - Elegant Comfort for Every Day
Why Choose Iris Set?
Comfort meets elegance in this sophisticated set made of high-quality elastic cotton. The bodice with thin adjustable straps and a delicate neckline shapes the figure without being constricting, while the Brazilians with a subtle gather at the front and a decorative ribbon perfectly complete the look.

What makes this set special?
Sophisticated design with attention to detail - The delicate gather of the fabric at the neckline of the bodice and at the front of the Brazilians creates a feminine accent without unnecessary drama. The small ribbon adds a finishing touch of elegance.

Perfect fit for every figure - The adjustable straps of the bodice allow for individual adjustment for maximum comfort throughout the day. No more discomfort from tightness or looseness.

Quality cotton jersey with elastane - The soft, breathable material ensures all-day freshness and freedom of movement. The fabric retains its shape even after repeated washings.

How to wear the Iris set?
Ideal for everyday life, work or relaxing at home. Combine it with your favorite jeans and a shirt for a casual look or wear it as a base layer under a formal outfit. The universal black color and delicate purple hue combine perfectly with any wardrobe.

Experience the perfect blend of cotton comfort and delicate lace with this women's corsage. Enjoy the soft touch of cotton against your skin while adding a touch of elegance with the lace detailing.

• Soft Cotton Fabric: Provides all-day comfort.
• Delicate Lace: Adds a feminine and elegant touch.
• Perfect for adding a subtle accent to your outfit.

Experience the ultimate in comfort with our High-Waisted Cotton Bikini. Made from soft, breathable cotton, these panties offer a comfortable fit all day long.

• High-waisted design for a flattering fit.
• Made with cotton for breathability and comfort.

Experience ultimate comfort with these beige Brazilian briefs. The low-waist design offers a modern fit, while the silky-touch fabric feels incredibly smooth against your skin.

• Brazilian cut
• Low waist style
• Silky-touch fabric

Experience the ultimate comfort with our women's Silky Touch boxers.

• Soft and smooth fabric against your skin.
• Perfect for everyday wear.
• Offers a sleek silhouette under clothing.

Experience silky softness with the Silky Touch women's boxer briefs in elegant black. Crafted from fine microfiber with exceptional stretch, they gently conform to your body, providing maximum comfort and freedom of movement. The lustrous fabric adds a refined touch that will make you feel confident all day long.

• Soft, silky-smooth fabric
• Optimal all-day comfort
• Elegant subtle sheen
• Seamless front and sides
• Cotton hygienic lining

Embrace the essence of relaxation with our Tropic Ladies Set! This beautifully designed two-piece set features a delicate camisole top and matching shorts, both adorned with a soothing tropical print. Perfect for warm nights or lazy mornings.

• Lightweight fabric for ultimate comfort
• Chic tropical design
• Ideal for sleepwear or loungewear