スクエアサングラス

Square sunglasses are built around visible corners and a straighter upper line. Those features give the frame a clear outline, but the effect can range from quiet to bold depending on rim thickness, width, and material.

• A flatter brow line adds definition across the upper face.
• Softened corners keep the shape structured without looking severe.
• Broad acetate rims make the square outline more graphic.
• Titanium or mixed-material designs create a finer, more detailed profile.
• Three width ranges—135–140MM, 141–146MM, and 147+MM—make it easier to compare proportions.
• Black and tortoise emphasize the shape, while transparent colors reduce visual weight.

The best pair should introduce the amount of contrast you want without overpowering your features.

Round Faces
Square sunglasses add straighter lines and more visible corners, helping create definition around softer contours.

Oval Faces
Most square proportions work well. A thicker rim makes the frame the focal point, while a slimmer or translucent design feels more restrained.

Heart-Shaped Faces
Look for a frame whose width follows the temples without extending too far beyond the cheekbones. Slightly softened lower corners can keep the shape balanced.

Square or Angular Faces
Choose rounded corners, a lighter color, or a thinner construction if you want structure without repeating every facial angle.

Long Faces
Medium-to-tall lenses and a wider frame can occupy more vertical and horizontal space, creating a fuller visual balance.

Square sunglasses change character more noticeably than many softer shapes because every material and color affects how clearly the border is seen.

• Acetate gives the front a continuous, substantial outline.
• Acetate with metal or titanium adds contrast between the front and temples.
• Titanium suits a cleaner interpretation with finer visible lines.
• Black creates the sharpest border; tortoise introduces warmth and variation.
• Transparent, grey, or khaki frames soften the geometry.
• Blue, green, orange, red, white, and yellow make the frame a stronger styling accent.
• A 135–140MM width feels more compact, while 147+MM creates a broader statement.