This is Nio, a Square-shaped frame from the Classic collection made of Stainless steel. Like all ic! berlin frames, Nio is 100% designed and manufactured in Berlin.
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Nio

Item nr.:
M1621B012164t15007do
Variant:
18 mm 39 mm 46 mm 127 mm
145 mm
Model: Nio
Variant:
Light transmission: For prescription
Material: Metal
Shape: Trapeze, Small, Square
Size: Small
Collection: Classic
Face: Rectangular
Material details: Stainless steel
Front color details: Rough-Graphite
Lens: For prescription
Lens filter category: 0 No tint. No protection from sun glare.
Polarized: No
Mirrored: No
Weight: 19 g
Width: 127 mm
Lens height: 39 mm
Lens width: 46 mm
Lens distance: 18 mm
Hinge: 6 mm
Nose width: 20 mm
Temple color: Rough
Templetip color details: Warm Grey