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Regular price £45.00 Sale

Slate coloured circular unisex frame that suits most small and medium faces. Made from 100% recycled polypropylene trawl nets and lines.

Estimated delivery for UK orders between and . Please allow 7-10 days for international orders. Prescription orders take 7-14 days depending on complexity.



Designed for ocean adventures

Prescription lenses and saltwater-resistant components

100% recycled fishing net

Our frames are entirely recycled  - absolutely zero virgin plastic

High Quality Prescription Lenses

Glazed by specialist opticians in Cornwall

Waterhaul Lifetime Warranty

We'll replace and recycle your frames for free, forever

H A R L Y N   S L A T E  (O P T I C A L)

Our Harlyn Slate optical frame is made from 100% recycled trawl nets and lines and is available with prescription lenses, offering complete sustainability, utility and optical clarity. The circular/panto style frame suits a broad range of face sizes, and is fitted with base-6 lenses.


- Italian engineered and hand-finished.

- 0% virgin plastics, 100% recycled polypropylene nets and lines, which are the most abundant form of ghost gear we find on our shores.

- Matte slate grey finish that alludes to the materials origins as ocean plastic.

- Ultra-durable five barrel hinges.

- Our frames are covered by our ‘Recycle and Replace’ lifetime guarantee – damaged frames can go back into the plastic recycling loop to create new pairs. 


Our prescription glasses lenses are glazed to the highest standards by a family-run manufacturing opticians in Cornwall.

We offer clear prescription lenses in three materials:

CR39 - The modern industry standard. Plastic lens with good optical clarity properties. 

Mineral glass - By far the greatest optical clarity of all lens materials, with an Abbe value of 59 (vs. 32 for polycarbonate). Not recommended for strong prescriptions due to thickness. Slightly heavier than CR39.

1.67 Index - Known as 'Light and Thin' lenses, this option reduces thickness by approximately a third vs. the above options, making it ideal for stronger prescriptions. Anti-reflective coating as standard. (even thinner 1.74 Index also available on request)

Unfortunately, we are unable to produce varifocals. However, you can purchase our 'frame only' option and have them glazed with your local optician. 

Please contact customerservice@waterhaul.co for queries around lens types, options and prescription queries. 


You are directly enabling the expansion of our ghost gear recovery and recycling efforts and creating a demand for plastic to be removed from the ocean.

You'll also be supporting the delivery of PlaNET Action, our unique education program. We deliver workshops across the UK, with our portable ocean plastic recycling machines and our marine biologist educators deployed to engage and inspire the next-generation to understand the marine environment, why we should protect it, and to encourage innovative thinking. 



We're passionate about combining adventure with purpose - action on the ocean, for the oceans. Our eyewear is designed to meet the demands of this environment and enhance your experience whilst symbolising and inspiring marine conservation. 

Learn more


- Every pair of Waterhauls comes with a free sustainable cork tri-folding protective case included.

- Our delivery packaging is always entirely plastic-free and 100% recyclable.


Harlyn Slate frame 📏
Overall size guide: Small - Medium. Circular unisex frame that suits most small and medium faces. For an aqua version check out our Harlyn Aqua.
Frame width: 136 mm
Lens width: 48 mm
Frame height: 50 mm
Bridge width: 22 mm
Arm length: 139 mm

30-Days To Try,
Lifetime To Recycle.

We get it - picking a frame style online isn't always that easy. That's why we offer 30 days after your Waterhaul's arrive to try them on at home - if you want to return or swap, return postage is free with Paypal Returns. Please note, prescription lenses are non-refundable.

Likewise, we strive to operate an entirely circular business model and ensure a single pair never goes to landfill. Our sunglasses are made to last, but if you manage to break a pair, we'll offer to repair them or recycle them and provide you with replacement frame for free.