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Knowledge

What Jiayu writes about eyewear

Between June and August 2025 Jiayu published twelve knowledge articles, mostly buying guides for sport, fishing and golf sunglasses and one on safety-glasses standards. Each is summarised here in our words with one sentence of theirs and a link to the original. Two titles on the list have no page of their own; they are noted as such.

  1. 2025-08-05jiayu-optical.com

    How to choose the right golf sunglasses?

    A six-step buying guide: lens technology first (polarization, UV400, tint), then lens material (polycarbonate over glass), frame comfort (TR90, titanium, nylon, silicone nose pads), ventilation and scratch resistance, tint matched to playing conditions, and comfort over a long round.

    Avoid Overly Dark Tints: Dark lenses can dull colors, making it harder to distinguish grass shades or ball details.

    Read the original

  2. 2025-07-30jiayu-optical.com

    How to choose a pair of suitable fishing sunglasses?

    Six points for anglers: polarization, tint by water and light (grey, amber and copper, yellow, blue and green), UV400, durable lenses and corrosion-resistant frames, a wraparound fit under 30 g, and extras such as interchangeable or photochromic lenses and vents.

    Polarization is non-negotiable for fishing.

    Read the original

  3. 2025-07-28jiayu-optical.com

    Do golf sunglasses come in different colors and styles?

    What grey, brown, green, yellow and rose lenses each do on the course, then frame colours and shapes.

    Brown lenses can enhance depth perception and contrast.

    Read the original

  4. 2025-07-25jiayu-optical.com

    Golf Sunglasses: A Guide to Features and Benefits

    UV protection and glare reduction with polarized lenses as standard, contrast tints, interchangeable or photochromic lenses, polycarbonate lenses with anti-scratch and anti-fog coatings, TR90, titanium or nylon frames with silicone grips.

    Jiayu Polarized lenses are standard, eliminating glare from water hazards, sand traps, and wet grass.

    Read the original

  5. 2025-07-21jiayu-optical.com

    Here are some materials of sports sunglasses suitable for running

    A material primer: PC, TAC and nylon lenses with their pros and cons; TR90 frames (heat resistance to 350 degrees, impact resistance more than twice that of cellulose acetate, memory function) and nylon or carbon-fibre frames. The clearest statement of the materials the factory works with.

    Its impact resistance is more than twice that of cellulose acetate plastic (CA).

    Read the original

  6. 2025-07-16jiayu-optical.com

    How Cycling Sunglasses Aid Vision During Cycling?

    Four benefits: glare and eye-strain reduction, visibility across light conditions with photochromic or amber lenses, debris protection from wrap-around frames, long-term UV protection.

    The wrap-around design of cycling sunglasses creates a barrier, keeping these irritants out.

    Read the original

  7. 2025-07-14jiayu-optical.com

    Core Functions of Sports Sunglasses

    Three function groups: protection (UV400, impact resistance to ANSI Z87.1 or EN 166, wind barrier), visual enhancement (polarized, tint, photochromic), comfort and stability (TR90, nylon or carbon fibre, anti-slip grips, aerodynamic shape).

    Made from shatterproof materials like polycarbonate (PC) or Trivex, meeting standards like ANSI Z87.1 (USA) or EN 166 (EU).

    Read the original

  8. 2025-07-01jiayu-optical.com

    How to choose the right cycling sunglasses?

    The longest guide: riding scenario (road, mountain, commuting), UV400 and impact resistance with a home test, a lens colour and VLT table by scenario, fit checks (anti-slip, helmet gap, ventilation) and add-ons such as prescription inserts and quick-change lenses.

    Aerodynamic frames: Streamlined designs to minimize wind resistance.

    Read the original

  9. 2025-06-27jiayu-optical.com

    Essential equipment for cycling: cycling sunglasses

    Key functions (UV, anti-glare, debris, aerodynamics, impact) and construction (TR90, carbon or nylon frames; PC, glass, polarized or photochromic lenses; silicone nose pads; grippy temple tips).

    Shape: 3D wrap-around design for full coverage, blocking side glare and wind.

    Read the original

  10. 2025-06-26jiayu-optical.com

    Are there any international standards for safety glasses?

    Describes ANSI Z87.1 including the 2020 update, the EN 166 marking scheme and AS/NZS 1337.1 impact levels (13, 45, 120 and 190 m/s), illustrated with the factory's own safety glasses.

    The impact levels are low (13m/s), medium (45m/s), high (120m/s), and ultra-high (190m/s).

    Read the original

  11. 2025-06-25jiayu-optical.com

    What are the precautions when wearing safety glasses?

    Listed with a teaser (preparation, correct use, maintenance, special scenarios); its link resolves to the standards article above, so there is no separate page to summarise.

    Listing page

  12. 2025-06-19jiayu-optical.com

    How to choose suitable safety glasses?

    Listed with a teaser only (safety glasses differ from regular eyewear by meeting ANSI Z87.1 or EN 166); no detail page exists.

    Listing page

FAQ

The answers Jiayu publishes

Combined from the FAQ pages of both sites and the FAQ block repeated on product pages.

Which standards do your sunglasses meet?

EN ISO 12312-1:2013 (A1:2015), AS/NZS 1067.1:2016, ANSI Z80.3:2018, and FDA. Strict QC is done during the production process.

Source: jiayu-optical.com/faq

What is the MOQ?

600 pieces per model, 300 pieces per colour.

Source: jiayu-optical.com/faq

How long does a bulk order take?

For OEM orders, around 40 to 60 days after receiving the deposit. Ready goods with a custom logo take 7 to 15 days; custom orders 30 to 60 days in normal conditions.

Source: both FAQs

Can you put our logo on?

Yes: laser, printing or metal logo, or a thin metal sticker. The sister site lists silk print, hot stamp and metal logo on the temples, and laser on the lenses.

Source: both FAQs

Do you support sample orders?

Yes. Contact Jiayu for a quotation.

Source: jiayu-optical.com/faq

Can you make our own design?

Jiayu says it can support custom styles, materials and colours, and will produce a digital wireframe from a sketch before sampling.

Source: jiayusunglasses.com/faq and About

How is shipping timed?

Express 4 to 7 working days, air 10 to 15 days, sea 25 to 45 days.

Source: jiayusunglasses.com/faq

Is there a guarantee?

One year from the shipping date for all glasses frames.

Source: jiayu-optical.com/faq

Company news

Dated posts

The fair posts with a date and a booth number. Self-published ranking articles are not repeated here.

  1. 2024-10-14company news

    Oct 2024 Global Sources Sports & Outdoor Show, invitation

    27 to 30 October 2024, AsiaWorld-Expo, Hong Kong, booth 5K15: ski goggles, cycling, sports and fashion sunglasses, safety glasses.

    Read the original

  2. 2024-05-16company news

    2024 Global Sources Sports & Outdoor Show, report

    27 to 30 April 2024, AsiaWorld-Expo: cycling, running and fishing sunglasses, ski goggles and floating sunglasses shown. Jiayu writes that it was the only exhibitor with ski goggles.

    Read the original

  3. 2023-07-26company news

    Apr 2024 Global Sources Sports & Outdoor Show, invitation

    Booth 5H06, AsiaWorld-Expo, 27 to 30 April 2024.

    Read the original

  4. 2022-12-16company news

    Hong Kong Optical Fair

    HKTDC Hong Kong Optical Fair, booth 1C-B11: TR90 fashion styles, sports sunglasses, kids sunglasses, the fit-over series and the floating series.

    Read the original

  5. 2022-11-14company news

    2022 Xiamen International Optical Fair

    The first China Xiamen International Optical Industry Exhibition, 24 to 26 November 2022, noted by Jiayu.

    Read the original

Two product films

Floating and side shields

Two of the eleven product films on the case pages, for the two conditions where Jiayu's catalogue is least ordinary.

Thumbnail of the Jiayu video: Polarized Floating Sunglasses for Fishing, Jiayu, YouTube
Floatable Eyewear Polarized Fishing Floating Sunglasses, case page.
Thumbnail of the Jiayu video: Sports safety glasses with side shield, Jiayu, YouTube
Side Shields Prescription Safety Glasses, case page.

Terms as published

600 per model, 300 per colour, samples on request.