Cook Shark 8571 Photochromic Polarized Sunglasses — Al-Mg Wrap Sport, 139mm, 29.5g
The Cook Shark 8571 is a 139mm aluminium-magnesium rectangular wrap sport polarized sunglass — photochromic auto-tinting combined with permanent TAC polarization, silicone nose pads, hollow-accent temple arms with textured tips, 66mm lens width, 40mm frame height, 14mm bridge, 130mm temples, 29.5g. Five lens colour variants including yellow for low-light use.
Key Specifications
| Specification | Detail |
|---|---|
| Model | 8571 |
| Frame style | Rectangular wrap / sport |
| Frame material | Aluminium-magnesium alloy |
| Temple material | Aluminium-magnesium alloy |
| Lens material | TAC polarized |
| Lens attributes | Photochromic + polarized + UV400 |
| Lens width | 66mm |
| Frame height | 40mm |
| Bridge width | 14mm |
| Overall width | 139mm |
| Temple length | 130mm |
| Nose pads | Silicone |
| Weight | 29.5g |
| Gender | Unisex |
Variants — Five Lens Options
Photochromic: Auto-tinting + polarized — the primary variant.
Blue: Blue mirror lens.
Yellow: Low-light contrast enhancement — overcast, dusk, dawn.
Black: Dark fixed polarized.
Gray: Grey tint polarized.
Photochromic + Polarized
The 8571 combines photochromic auto-tinting with permanent polarization — both functions operate simultaneously. In bright UV conditions the lens darkens and the polarized filter eliminates horizontal glare. In lower UV conditions the lens lightens while the polarized filter remains active. As with all photochromic lenses, the auto-tinting response is slower through UV-filtering car windscreens.
Hollow Temple Accents
The 8571’s temple arms include a hollow cut-out accent section along the arms — a decorative structural detail that gives the temples a more technical, sport-engineering appearance. The textured grip sections at the temple tips improve contact behind the ear for a more secure fit during active use.
139mm — Narrower Sport Wrap
At 139mm the 8571 is a narrower sport wrap than the 8034 (152mm) and 8127 (140mm). For buyers who want the sport wrap photochromic polarized combination but find 140–152mm too wide, the 8571 at 139mm is the appropriate fit. The 130mm temples are shorter than most other models — suitable for buyers with shallower head depth (front-to-back) where 140–150mm temples extend too far.
8571 vs 8127 vs 8034 — Three Photochromic Sport Models
| Feature | 8571 (this page) | 8127 | 8034 |
|---|---|---|---|
| Width | 139mm | 140mm | 152mm |
| Lens width | 66mm | 65mm | 70mm |
| Temples | 130mm | 140mm | 135mm |
| Spring temples | No | Yes | No |
| Anti-skid covers | No | Yes | No |
| Yellow lens | Yes | No | Yes |
| Frame | Full Al-Mg | Al-Mg | Al-Mg |
Choose 8571 for the narrowest wrap fit at 139mm with shorter 130mm temples and yellow lens option. Choose 8127 for cycling/riding with spring anti-skid temple system. Choose 8034 for maximum coverage at 152mm with the widest 70mm lens.
Who Is the Cook Shark 8571 For?
The 8571 is built for:
- Narrow-fit sport wrap buyers who want photochromic polarized in a 139mm frame rather than the wider 140–152mm alternatives
- Short temple buyers — 130mm suits shallower head depth where 140–150mm temples reach too far
- Yellow lens sport wrap buyers who want low-light contrast alongside the photochromic option
- Full Al-Mg frame and temple buyers who want all-metal construction in a sport wrap format
More from Jewelry Addicts
- Cook Shark 8127 Riding — spring anti-skid temple cycling alternative
- Cook Shark 8034 Sports Polarized — widest 152mm sport wrap alternative
- Cook Shark 8699 Gradient — 4-in-1 gradient driving alternative
- Cook Shark Sunglasses Guide — full Cook Shark range guide
SHIPPING
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:| Location | *Estimated Shipping Time |
|---|---|
| United States | 5-20 Business days |
| Canada, Europe | 5-20 Business days |
| Australia, New Zealand | 5-20 Business days |
| Central & South America | 5-25 Business days |
| Asia | 5-20 Business days |
| Africa | 5-25 Business days |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
RETURNS
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time (45 days not including 1-3 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of jwlraddicts.com (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of jwlraddicts.com.
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing, you must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of jwlraddicts.com (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of //jwlraddicts.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
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