Rudy Project Astral prescription sunglasses feature a lightweight Rilsan® frame with adjustable grip and a broad shield-inspired lens. Fitted with Rudy Project’s clip-on RX optical insert, they offer clear, personalised vision with full UV protection, ideal for performance and everyday wear.
Rudy Project Astral Prescription Sunglasses
The Rudy Project Astral prescription sunglasses blend contemporary sport styling with everyday versatility and prescription readiness, ideal for cycling, running, outdoor activities, travel and casual wear with vision correction. Featuring a lightweight, modern frame and broad shield-inspired lens shape, the Astral delivers expansive coverage, secure fit and reliable protection while accommodating Rudy Project’s proprietary prescription clip-on RX optical insert behind the main lens.
Lightweight Rilsan® Frame & Active Lifestyle Fit
The Astral is built with a lightweight Rilsan® Clear bio-plastic frame, made with eco-sustainable materials that are both flexible and durable for all-day wear and performance. Its wrap-influenced silhouette offers wide coverage against sun, wind and glare, while adjustable anti-slip nose pads and rubber-coated temple tips enhance stability outdoors, helping keep the glasses comfortably in place during movement.
Weighing approximately 25 grams, Astral feels exceptionally light on your face, making it as suitable for training rides and trail runs as it is for travel and daily wear. The modern aesthetic balances sport functionality with a lifestyle look that suits a variety of activities and settings.
Prescription System - Rudy Project RX Optical Insert
The Rudy Project Astral uses a clip-on RX optical insert to provide prescription correction without altering the sunglass lens shape. This solution allows you to enjoy the full coverage and design of the Astral while integrating custom corrective lenses behind the main sun lens.
Rudy Project RX Optical Insert
Clip-on insert: A dedicated internal optical adapter clips into the frame behind the primary lens, accommodating a range of single-vision and varifocal prescriptions.
Secure optical correction: The insert holds prescription lenses tailored to your vision needs, providing clear, personalised sight while maintaining the performance shape and protection of the outer lens.
Seamless integration: Because the insert sits discretely behind the main lens, the aesthetic and expansive field of view of the Astral are preserved.
Note: This prescription solution uses Rudy Project’s clip-on RX optical insert only, third-party lenses are not compatible due to the design.
Lens Performance & Protection
Astral sunglasses come with RP Optics (or equivalent high-performance Rudy Project lenses depending on colour way), offering vibrant colour perception, reduced glare and 100 % protection against harmful UVA/UVB rays for everyday outdoor use. The shield-style lens design also helps preserve a wide field of view, ideal for road or trail visibility, cycling, and proximity awareness in fast-moving scenarios.
Rudy Project Astral Prescription Sunglasses - Key Features & Benefits
Lightweight Rilsan® Clear Frame
Bio-based, durable and comfortable for extended wear.
Wrap-Inspired Lens Shape
Enhanced coverage against sun, wind and glare.
Adjustable Anti-Slip Nosepads
Customisable fit for stability in motion.
Anti-Slip Temple Tips
Grip improves with moisture for secure wear during activity.
RX Optical Insert Compatible
Seamlessly integrates prescription correction behind the lens.
RP Optics Protection
High-quality optics deliver UV protection and colour integrity.
Full UVA/UVB Protection
All lenses block harmful UV rays for everyday outdoor safety.
What’s Included With Our Rudy Project Astral Prescription Sunglasses
All prescription pricing is fully inclusive, including:
Rudy Project Prescription sunglasses – 3 to 4 weeks
Uvex Prescription sunglasses – 2 to 3 weeks
Serengeti Prescription Sunglasses – 2 to 3 weeks
Oakley Prescription Sunglasses fitted with Digital custom lenses – 3 to 4 weeks
* If you have a required by date in mind during checkout please leave a note in the ‘comments’ box to advise your date and we will pass it onto the manufacturer. If your date is before the lead times we can’t promise the sunglasses will be delivered in this timescale however the brands will aim to hit your dates.
Prescription Help Understanding your prescription
Your prescription is split into three sections, Sphere, Cylinder and Axis. You will most commonly see this written as, Sph, Cyl and Axis.
There are simple rules for each part of the prescription
Sphere – Is always a number in 0.25 jumps (i.e. 0.25, 0.50, 0.75, 1.00, 1.25). This can either be written in minus or plus (- or +).
IMPORTANT: You must select the correct symbol when ordering (minus or plus, – or +) as selecting the wrong sign will create the completely wrong prescription required to correct your vision.
Cyl – Is always a number in 0.25 jumps (i.e. 0.25, 0.50, 0.75, 1.00, 1.25). This can either be written in minus or plus.
IMPORTANT: You must select the correct symbol when ordering (minus or plus, – or +) as selecting the wrong sign will create the completely wrong prescription required to correct your vision.
Axis – Is a number between 0 and 180, it can also be written to point five (0.5) of a degree. This simply happens if the optometrist can’t decide wether you prefer for example 79 or 80 so they simply write your axis as 79.5. In this case lets get your glasses as accurate as possible so please provide us with the 79.5.
The in instances when a prescription doesn’t have a value for the Cyl section please leave the Axis blank (or some opticians write this as 0.00), the Axis is indicating what degree the Cyl figure sits at so if there is no Cyl there is no Axis required.
Other symbols which are often seen written in a glasses prescription
Infinity Symbol ∞ – this is another way of writing zero (no prescription) so simply select 0.00 into the corresponding section for either sphere or cyl.
Plano – this is another way of writing zero (no prescription) so simply select 0.00 into the corresponding section for either sphere or cyl.
Varifocals - What is the Add (Addition) part of my prescription?
You typically start to get the add part to a prescription when you hit 40+ and it is a measure of the amount of magnification you require to read.
The add is a plus (+) power which identifies how much extra addition (magnification) a glasses wearer requires (on top of their distance prescription) in order to read comfortably at close up distances, such as reading.
NOTE: Sometimes an optician will write your prescription for reading as a full prescription rather than simply supplying your reading add.
Example:
Distance
Right: -2.50 / -0.50 x 180
Left: -2.00 / -0.75 x 175
Near
Right: -1.00 / -0.50 x 180
Left: -0.50 / -0.75 x 175
Reading Add = +1.50
In this case to get your reading add take your distance Prescription Sphere off your reading Shere. The difference between the two figures is your reading add used for Varifocals.
Pupil DistanceLet our Dispensing Optician Measure your Pupil Distance accurately
For the Pupil Distance options on the ordering pages select 'Let Extreme eyewear measure your PD' and we'll post you our specially designed glasses.
(Note: On some projects the PD option will state 'send ruler' this option will still get you the new PD Measuring Glasses)
All you have to do is take a simple photo of you wearing our glasses and emailing your photo to us.
Our Dispensing Optician will then accurately take your mono pupil distances. Our PD glasses allows our dispensing opticians to gain all the details they need to set up single vision and varifocal sunglasses / eyewear accurately.
Let us supply you with perfect vision.
This service is free for all prescription eyewear orders.
What is your PD?
Your Pupil Distance is the measurement between the centre of your right and left pupils in mm.
How can you find out your Pupil Distance?
You may be lucky enough to have been given this by your optician
You can select to have our Pupil Distance measuring glasses posted to you. These will leave us on the same day you place an order 1st class post.
Why have we gone to the trouble of supplying PD Glasses?
Prescription glasses and sunglasses always work better when the centre of the optical lens is over your pupil. Not having this set up correctly can cause head aches and limit how well the glasses will work.
Varifocal Wearers
If you don't know your Mono Pupil Distances (this is two separate measurements for your right and left pupils) we strongly advise you select to have our PD Glasses posted to you. Varifocals with out mono pupil distances will not work correctly.
If you know your Mono Pupil Distances during the checkout there is a comment box, please write your right and left mono pupil distances in this comment box.
Examples
A pupil distance of 65 may have mono pupil distances of
Right 33
Left 32
Your total PD is still the same (65) But by using the separate mono pupil distances the centre of the varifocals will be positioned over your pupils making sure the clear corridor leading to your reading is in the correct position.
How do I receive PD Measuring Glasses?
In the PD options select ‘Let Extreme eyewear measure your PD’. The Digital ruler will be posted out on the same day as your order is placed to your shipping address supplied. (If your order comes in after 4.00pm the ruler will leave us the next day).
Abroad Orders
We will post the PD Measuring Glasses abroad but please allow a little more time to complete your order. The PD measuring glasses may take up to a week to get to abroad addresses.
Reviews
I messed up and they still put it right...
Great service from the guys at extreme Eyewear. I goofed up and ordered the wrong thing. What I wanted was something they did not even sell. But, this was no problem. They ordered in what I wanted and sent it out with a postage bag to send back the wrong product. I messed up and they still put it right. Highly recommended.
Marcus Miller - Google Review
Nothing is too much trouble...
Excellent service. Got a pair of Oakley prescription glasses with Oakley varifocal lenses which I couldn't get from any local opticians . Struggled to get Oakley lenses anywhere to be honest. Two week delivery time turned out to be less than a week and included May bank holiday. Nothing is too much trouble for these guys. Glasses are spot on and you won't find the bloke next to you wearing the same!
Frame: Rudy Project Astral & Optical Insert | Crystal Ash / Multilaser Green Lens
Original price was: £280.00.£198.00Current price is: £198.00.
Frame: Rudy Project Astral & Optical Insert | Matte Black / Smoke Black Lens
Original price was: £280.00.£195.00Current price is: £195.00.
