Sourcy
Sourcy
Sieve Non-Wire Bra

Sieve Non-Wire Bra

by Negative Underwear

premium
US

Trend Summary

This bra is a hallmark of Architectural Minimalism, with its signature mesh fabric and lack of wires or padding, creating a striking yet comfortable silhouette.

Key Features

  • Signature mesh fabric
  • Non-wire
  • Unpadded
  • Architectural silhouette

Featured In

Who What Wear (US)
The Zoe Report (US)
Vogue (International)
Harper's Bazaar (International)

Product Specifications

Primary Material
Italian or Swiss-made sensitive-touch micromesh
Fiber Composition
72% Polyamide, 28% Elastane
Material Certification
OEKO-TEX® STANDARD 100 and/or Bluesign® certified fabric
Style
Non-wire, unpadded, high-apex bralette
Cup Style
Sheer, fine-gauge mesh with intricate, sculptural seam work
Support
High support for a wireless style, engineered fit
Shape
Provides a lifted, defined, and naturally enhanced shape
Straps
Adjustable shoulder straps with silk-wrapped detail
Strap Hardware
Custom-designed, 24k gold-plated slide adjusters
Back Closure
Adjustable hook and eye closure
Number of Hooks
Four rows of micro-feel hooks
Seams
Asymmetrical and ergonomic seams designed for a sculptural fit
Band
Wide, silk-charmeuse wrapped bottom band
Size System
Proprietary sizing system with an expanded range of intermediate '+' sizes
Available Colors
Black, Espresso, and limited-edition curated shades

Differentiation Strategy

Differentiation is achieved through uncompromising luxury and elevated craftsmanship. The use of superior, European-sourced micromesh and genuine silk trims creates a distinct material advantage. The construction is more complex, featuring unique sculptural or asymmetrical seams as a design signature. Luxury details like gold-plated hardware and a 'Made in Europe' origin story justify a higher price point and appeal to a discerning luxury consumer.

Success Replication

This product builds on the reference bra's success by doubling down on the 'magic' of a high-tech, sheer fabric that provides unexpected support. It retains the minimalist, architectural aesthetic but elevates it to a designer level. The strategy of using a proprietary sizing system is also kept to signal a specialized, superior fit that justifies a premium price. The core identity as a sexy, comfortable, and supportive non-wire bra remains firmly intact.

    Sieve Non-Wire Bra - Bra | Product Catalogs