• Guard clear sports protective goggles front view with black frame and adjustable strap
  • Guard protective sports goggles rear view with silicone cushioning and elastic strap
  • Guard clear acetate sports goggles angled view with black front frame
  • Guard sports protective goggles side view with clear side guard and adjustable strap
  • Guard clear protective goggles rear angled view with red and black sports strap
  • O'S OPTICAL eyewear packaging with glasses case, pouch, cloth, and card
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O'S OPTICAL

Guard

Guard

Clear Acetate Goggle — Cushioned Protection
HK$628.00 HKD
HK$549.00 HKD HK$628.00 HKD
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Shipping calculated at checkout.
Color: Black
Lens Options

Prescription Options

Eye SPH CYL AXIS
Right (OD)
Left (OS)

No prescription on hand? No problem!

Please proceed to checkout and complete your order.

After placing your order, simply send a photo or PDF of your prescription to us via:

  • 💬 Chat Bubble (bottom right corner)
  • 📧 Email: osoptical.contact@gmail.com
  • 📱 WhatsApp

*Please include your Order Number in the message so we can match it to your lenses.

📦Free Shipping on all orders
Guard is built for dependable sports protection, combining a clear acetate-style shield structure with soft silicone cushioning and an adjustable elastic strap. The goggle-style frame helps provide stable coverage around the eyes, making it suitable for active training, ball sports, and high-movement use. With a 150 mm front width and a 70 g build, Guard offers a more substantial protective feel than lightweight everyday eyewear. The black front frame adds definition, while the clear side guards and cushioned inner support help improve comfort and stability during movement.

Specifications:
• Material: Clear Acetate & Silicone Strap
• Weight: 70 g
• Frame Width: 150 mm
• Lens Height: 50 mm
• Lens Diagonal: 75 mm
• Strap: Adjustable elastic sports strap

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Discover Our Eyewear Care & Service

Online Prescription Glasses Process

Choosing the Right Lens

Selecting the right lens index depends on your prescription strength (diopters). 
  • 0 to -2.00 diopters (mild prescription): 1.56 index recommended
  • -2.00 to -4.00 diopters (moderate prescription): 1.61 index recommended
  • -4.00 to -6.00 diopters (strong prescription): 1.67 index recommended
  • Above -6.00 diopters (very strong prescription): 1.74 index recommended
Important Note:
* Prescription strength may also be shown as “sphere (SPH)” in your eye test results. For example, -2.00 SPH ≈ -2.00 diopters
* No Prescription (Frame Only): Your glasses will arrive with acrylic demo lenses. These lenses may feature printed brand specifications and are intended solely to maintain the frame's shape. They are not designed for daily wear. We recommend visiting a local optician to have them replaced
* CR39 Index Options: If you select any CR39 option (1.56 - 1.74), your glasses will arrive with premium, crystal-clear optical lenses. These are custom-fitted, free of any printing, and ready for immediate wear

Protected & Thoughtfully Packaged

FAQ

Can I add prescription lenses to these frames?

Yes. Most O'S OPTICAL frames can be fitted with prescription lenses, except for selected sunglasses styles. If you are not sure whether a frame supports prescription lenses, please contact us before placing your order.

Can I send my prescription after ordering?

Yes, absolutely. You can provide your prescription details after placing your order. To ensure accuracy, simply send a clear copy of your optical prescription along with your order number through any of the following channels:

  • Email: osoptical.contact@gmail.com
  • Live Chat: Located in the bottom right corner of our website
  • WhatsApp: +852 6444 2918

How long does shipping take?

Standard shipping generally takes 5 to 15 business days. Our products are dispatched directly from our facilities in Hong Kong or mainland China. If your order includes customized prescription lenses, please allow an additional 3 business days for our opticians to precisely craft and fit your lenses before the order is shipped.

What if the glasses do not fit?

We offer a 30-day return and exchange policy. If you purchase sunglasses or non-prescription frames, you can return or exchange them within 30 days of receipt, provided they have no obvious signs of wear and are in their original condition.
However, please note that prescription lenses are custom-made to your specific visual requirements; therefore, they are non-refundable and cannot be exchanged once crafted. If you experience any issues with the fit or your new prescription, please reach out to our customer service team, and we will gladly assist you in finding a solution.

Product FAQ

  • What is Guard designed for?
    Guard is designed as protective sports eyewear for active movement, training, and ball sports where secure eye coverage is important.
  • Does Guard have an adjustable strap?
    Yes. Guard includes an adjustable elastic strap to help keep the goggles stable during movement.
  • What makes Guard different from regular glasses?
    Guard has a goggle-style frame, side coverage, silicone cushioning, and a strap system, offering a more secure protective fit than standard eyeglasses.
  • Is Guard suitable for high-movement activities?
    Yes. The cushioned frame and adjustable strap are designed to reduce slipping and improve stability during active use.