This is a pair of square-framed sunglasses that emphasizes a "retro, understated luxury" feel. It features a black-to-brown gradient tortoiseshell acetate frame as its base, paired with gold-engraved temples and detailed embellishments. The black-to-brown gradient tortoiseshell texture is achieved through a deep-dyeing process, creating a naturally transitioning pattern and recreating the warm, smooth feel of vintage accessories. The square frame flatters facial features (slimming round faces and softening angular features), while the gold-engraved details on the temples (paired with delicate decorative elements) enhance its refined and distinctive look, avoiding the monotony of a basic style without being overly ostentatious. The dark gray full-light lenses are suitable for bright lighting conditions, giving the overall style both "everyday practicality" and "styling flair"—making it the ideal accessory for retro enthusiasts to create sophisticated looks for commuting or casual dates. The combination of the retro tortoiseshell texture and the understated luxury of the gold engravings effortlessly elevates the sophistication of any outfit.

Frame Material: The main frame is made of high-quality acetate fiber. The black-to-brown gradient tortoiseshell pattern is treated with a "multi-layer impregnation + hand polishing" process, resulting in a natural and smooth texture and a rich, warm color. It is resistant to fading, whitening, or deformation even with long-term wear. The frame edges are rounded to ensure a comfortable fit against the face while retaining the skin-friendly feel of the acetate material.

Template Decoration: The gold areas of the temples are made of high-toughness aerospace-grade alloy, undergoing a 5-layer vacuum electroplating + high-temperature color-fixing process to achieve a soft, warm gold hue. This process also provides anti-oxidation and scratch resistance. The engraved details on the gold areas utilize a "precision relief + hand polishing" technique, resulting in clear and delicate textures. Combined with small decorative elements, this enhances the retro-luxury style and ensures excellent durability, preventing the gold from easily falling off during daily use.

Lens Material: Equipped with high-definition UV400 dark gray all-light-blocking resin lenses, providing 100% protection against harmful UVA and UVB rays while completely filtering out strong light and glare, making them especially suitable for bright light conditions such as summer commutes and outdoor shopping. The lenses feature a matte dark gray finish, ensuring effective light blocking while preventing reflections from ruining the retro look.

Details and Craftsmanship: The nose pads are made of medical-grade soft silicone, supporting 360° multi-angle micro-adjustment to fit snugly to different nose shapes (including flat and high noses), reducing pressure marks and the risk of slipping after prolonged wear. The rear half of the temples is made of flexible TR90 material, seamlessly integrated with the acetate frame and gold accents, maintaining stylistic consistency while enhancing fit and comfort. The temple tips feature built-in anti-slip silicone pads that conform to the curve of the skin behind the ear, ensuring stability even when looking down at a phone or walking quickly.

(Note: The following are standard dimensions for a single model; manual measurement may have an error range of ±1mm)

Frame width: 140mm. Fits most face shapes, especially flattering for round and square faces.

Lens width: 54mm. Square outline to refine facial lines and enhance sophistication.

Lens height: 48mm. Full sun protection design, covering the eyes and surrounding area.

Nose bridge width: 20mm. Fits medium nose bridge widths, reducing constriction.

Temperature length: 138mm. Made of flexible TR90 material, suitable for most head circumferences.

Frame thickness: 4mm. Balances the texture of acetate material with lightweight feel.

Single lens weight: 50g. Lightweight design with high-quality materials, providing a comfortable wearing experience.

Suitable for: Retro commuting, afternoon tea dates, retro market photos, city street photography, and sophisticated dates; meets sun protection needs in bright light and also serves as a sophisticated retro accessory to enhance the overall look.

**Suitable for:** Retro commuting, afternoon tea dates, retro market photos, city street photography, and mature-style dates; meets the need for sun protection in bright light and also serves as a sophisticated retro accessory to enhance the overall look. **Mature Retro Style:** Pair a silk vintage shirt with a high-waisted corduroy skirt and loafers. The tortoiseshell frames echo the retro feel of the corduroy, while gold engraved details enhance the sophistication. Suitable for cafes, vintage bookstores, and similar settings.

**Casual Commuter Style:** Pair a simple cotton-linen blazer with a solid-color T-shirt, straight-leg jeans, and canvas shoes. The square frames soften the blazer's formality, while the tortoiseshell pattern adds a touch of softness, balancing business and casual elements.

**Retro Date Style:** Pair a floral print slip dress with a lightweight knit cardigan and heeled sandals. Gold engraved details add a touch of understated luxury to the dress, while dark gray lenses soften the overall look. Suitable for dates in restaurants, parks, and similar settings.

**Everyday Minimalist Style:** Pair a solid-color oversized sweatshirt with high-waisted sweatpants and chunky sneakers. The tortoiseshell frames break the monotony of the outfit, while gold details elevate the overall quality, easily creating a comfortable yet retro everyday look.

Wearing Experience: The lightweight 50g acetate frame, combined with soft silicone nose pads and flexible TR90 temples, won't cause noticeable pressure on the bridge of the nose or behind the ears even during long commutes or dates. The anti-slip silicone pads at the temple tips enhance stability, preventing slippage when looking down at documents or walking quickly. The dark gray full-light blocking lenses completely block glare in bright light, providing comfortable and fatigue-free vision.

Precautions: Avoid prolonged exposure of the acetate frame to high temperatures (such as inside a car exposed to direct sunlight) to prevent material deformation. Avoid scratching the gold-engraved areas with sharp objects to prevent damage to the texture. When cleaning, it is recommended to gently wipe the lenses and frame surface with a dedicated eyeglass cloth, avoiding the use of rough tissues or chemical cleaners (such as alcohol or perfume) to prevent damage to the lens coating or frame color. When not wearing the glasses, please store them in the matching hard-sided glasses case to reduce dust accumulation and external pressure.