The SIOUX is defined by its perfectly balanced rounded silhouette and a specialized bridge design that creates a unique structural "floating" effect. Unlike the more aggressive "Glitch" or "Origami" series, the SIOUX emphasizes clean lines and industrial elegance, making it one of the most versatile and lightweight models in the collection.
Pure Titanium Construction: The frame is entirely handcrafted in Italy using high-grade titanium. This ensures the chassis is hypoallergenic, highly resistant to corrosion, and exceptionally lightweight for all-day wear.
High-Gloss & Matte Bi-Finishing: Available in sophisticated colorways like Gold Tortoise, Black Gold, and Silver Blue. The frame often features a contrast between polished metallic surfaces and matte acetate accents, creating a 3D visual depth.
Artisanal Italian Bench-Work: Each frame undergoes a meticulous manual preparation process where the titanium is cold-worked to maintain its tensile strength while achieving a sleek, minimalist profile.
Sustainable Production: In line with Portrait's core values, the SIOUX is produced using energy-efficient methods and socially responsible labor practices, preserving the heritage of traditional Italian eyewear manufacturing.
Featherlight "Aero" Fit: Due to its full titanium build, the SIOUX is designed to be virtually weightless on the face. This makes it an ideal choice for users who are sensitive to the weight of traditional acetate frames.
Anatomically Curved Temples: The slim titanium arms are ergonomically shaped to provide a secure but gentle grip, ensuring the frame stays in place without creating pressure points behind the ears.
Adjustable Bridge Stability: The integrated bridge is engineered to sit comfortably on a variety of nose profiles, providing a stable "Universal Fit" that suits both men and women.
Model: SIOUX
Lens Width: 48mm
Bridge Width: 21mm
Temple Length: 145mm
Shape: Rounded / Circular Hybrid
Manufacturing: Entirely Handmade in Italy
Material: 100% Premium Titanium
Expert Note: The SIOUX is a "technical essential" for those with square, heart, or angular face shapes, as its rounded geometry naturally softens strong facial features. The 48mm lens width provides a classic, intellectual look that is perfect for small to medium faces. Because it is made of titanium, it is the best model in the Portrait lineup for complex, high-index prescriptions where minimizing the total weight of the glasses is the primary goal.
The SIOUX is defined by its perfectly balanced rounded silhouette and a specialized bridge design that creates a unique structural "floating" effect. Unlike the more aggressive "Glitch" or "Origami" series, the SIOUX emphasizes clean lines and industrial elegance, making it one of the most versatile and lightweight models in the collection.
Pure Titanium Construction: The frame is entirely handcrafted in Italy using high-grade titanium. This ensures the chassis is hypoallergenic, highly resistant to corrosion, and exceptionally lightweight for all-day wear.
High-Gloss & Matte Bi-Finishing: Available in sophisticated colorways like Gold Tortoise, Black Gold, and Silver Blue. The frame often features a contrast between polished metallic surfaces and matte acetate accents, creating a 3D visual depth.
Artisanal Italian Bench-Work: Each frame undergoes a meticulous manual preparation process where the titanium is cold-worked to maintain its tensile strength while achieving a sleek, minimalist profile.
Sustainable Production: In line with Portrait's core values, the SIOUX is produced using energy-efficient methods and socially responsible labor practices, preserving the heritage of traditional Italian eyewear manufacturing.
Featherlight "Aero" Fit: Due to its full titanium build, the SIOUX is designed to be virtually weightless on the face. This makes it an ideal choice for users who are sensitive to the weight of traditional acetate frames.
Anatomically Curved Temples: The slim titanium arms are ergonomically shaped to provide a secure but gentle grip, ensuring the frame stays in place without creating pressure points behind the ears.
Adjustable Bridge Stability: The integrated bridge is engineered to sit comfortably on a variety of nose profiles, providing a stable "Universal Fit" that suits both men and women.
Model: SIOUX
Lens Width: 48mm
Bridge Width: 21mm
Temple Length: 145mm
Shape: Rounded / Circular Hybrid
Manufacturing: Entirely Handmade in Italy
Material: 100% Premium Titanium
Expert Note: The SIOUX is a "technical essential" for those with square, heart, or angular face shapes, as its rounded geometry naturally softens strong facial features. The 48mm lens width provides a classic, intellectual look that is perfect for small to medium faces. Because it is made of titanium, it is the best model in the Portrait lineup for complex, high-index prescriptions where minimizing the total weight of the glasses is the primary goal.
