Sennen Slate Blue Light Blocking Glasses

In Stock

Regular price $110.00 | Save $-110.00 (Liquid error (sections/product-template line 192): divided by 0% off)

Our Sennen Slate blue light glasses boast advanced blue light blocking technology, shielding your eyes from the detrimental effects of prolonged screen exposure.

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

100% recycled fishing gear

Our frames are entirely recycled  - absolutely zero virgin plastic

Reduces eye strain 

Countering the negative effects of prolonged digital screen use

Aids your sleep

Blocking blue light a few hours before bed improves sleep quality

Waterhaul Lifetime Warranty

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

S E N N E N  S L A T E  (B L U E  L I G H T  B L O C K I N G)

Our Sennen optical frame is made from 100% recycled monofilament nylon fishing nets and glazed with our premium blue light blocking lenses to protect your eyes from digital light. The rectangular frame suits most medium to large face sizes.

Blue light blocking lenses help prevent digital eye strain and mental fatigue from prolonged screen use.


- Italian engineered and hand-finished.

- 0% virgin plastics, 100% recycled monofilament gill nets recovered in Cornwall. These are regarded as the most dangerous form of ghost net due to their high likelihood of entanglement, as they are virtually invisible underwater.

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

- Ultra-durable in-built flex hinges.

- The plastic from 100% recycled fishing nets gives these frames flexibility, allowing you to make minor adjustments at home to get the perfect fit. View our adjustment guide here.

- 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, including prescription blue light glasses, are glazed to the highest standards by a local family-run manufacturing opticians in Cornwall.

Simply choose a frame and upload your prescription to order online. 



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.


Sennen frame 📏
Overall size guide: Medium -large
Lens width: 51 mm
Bridge width: 18 mm
Arm length: 138 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 - UK customers, if you want to return or swap, return postage is free with Royal Mail 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. 


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