At MERGE4, we make socks without the stink. You can do that on your own.

We’re well into the 21st Century, where technology and environmental concern have smashed together like a jam sammich. The new revolution is producing products that are guaranteed harmless to human beings, puppies, kittens, unicorns and the environment. In addition to quality, style and comfort, environmental sustainability is one of our top priorities when developing new products. We aim to innovate sustainably by using responsibly-produced, recycled, and renewable materials.


Keeping plastic bottles out of the ocean and on your feet! We use certified Repreve® yarn made from post-consumer single-use plastic bottles and recycled polyester in our line of recycled plastic bottle socks.



Our hemp/TENCEL blend socks are derived from eco-friendly hemp yarn. Fast growing hemp requires less processing, water and land to produce and softens with every wash.


plant-based dye

Using liquid dyes made from organic crops, we are able to significantly reduce waste water, emissions and energy use. No heavy metals, no petrochemicals – just beautiful, natural, earthy colors.



Biodegradable and certifiably compostable, our hemp/Tencel blend socks use Tencel fiber, sourced from natural raw material wood. These eco-friendly fibers provide ultimate stretch and comfortable fit.

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plastic-free packaging

MERGE4 socks are produced and packed with extra care for our Mother Earth. We only use biodegradable paper for our hangtags and hangers, and each pair of socks is sewn with plastic-free thread.


Our environmentally friendly, bamboo-based yarn is inherently anti-bacterial and has a luxurious cashmere-like softness for ultra-cozy socks.

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certified b corp

using business as a force for doing good.

Certified B Corporations are a new kind of business that balances purpose and profit. They are legally required to consider the impact of their decisions on their workers, customers, suppliers, community, and the environment. This is a community of leaders, driving a global movement of people using business as a force for good.

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MERGE4 socks are manufactured in compliance with criteria from bluesign® - an independent third party that screens the dyeing and finishing of textiles.

Every order from is shipped in a 100% recycled poly mailer made in the USA, because we think using cheap, disposable shipping materials for short-term gain is a thing of the past.

FSC is an international certification system dedicated to promoting sustainable  management of the world's forests. All MERGE4 hang tags and paper products are sourced from responsibly managed forests.

By 2028, 100% of our socks will be made with recycled or plant-based fibers.

easy on the planet

ECOCART carbon offsets


sustainability at merge4 hq

We aren’t just people who make damn great super high quality socks… we also aim to respect and protect the environment around us - from cubicles to taco stands, beaches to concrete bowls, within our community and abroad. We want to make a positive impact on the world and promote sustainability wherever we can.

We offer incentives and reimbursements for employees who choose alternative transportation 

All the lightbulbs at HQ have been replaced with LEDs which are 80% more efficient than traditional lighting such as fluorescent and incandescent lights.

We use biodegradable cleaning supplies at the office.

We've swapped our office devices and equipment for more efficient ones and have implemented a policy to decrease energy use by switching them off when not in use.

Our headquarters are equipped with efficient heating and cooling 

With our HQ based in Santa Cruz, CA we care deeply about our beaches and host regular company beach clean up events to help care for the beautiful coastline we call home.