Our mission is to craft durable, eco-conscious apparel that champions ocean conservation. Through thoughtful design and sustainable production, we raise awareness and actively support removing ocean plastic. Every purchase helps protect marine life, fostering a cleaner, healthier ocean for future generations while inspiring a community committed to lasting positive change.

Buying our shirts helps remove ocean plastic through our partnership with Oceanworks, a trusted Plastic Action Platform that works globally to fund and ensure the removal of ocean-bound plastic waste. For every $50 spent, Oceanworks guarantees 1 pound of plastic is collected and recycled from vulnerable coastal and waterway areas, supporting transparent, verified efforts to protect marine ecosystems. We chose Oceanworks because of their audited programs, extensive network and proven impact in turning plastic pollution into a circular economy solution.

Our shirts are made from sustainably sourced 100% ring-spun cotton, with some colors blended with recycled polyester for durability. We choose materials that are comfortable, long-lasting and kinder to the planet.

Your shirt is made only after you order, eliminating waste from unsold inventory. We use sustainably grown US cotton, OEKO‑TEX® certified fabrics and recycle all cutting scraps. Production happens in WRAP‑certified, fair‑wage facilities with eco‑friendly, water‑based printing. Local fulfillment cuts shipping emissions providing a cleaner, more ethical alternative to fast fashion.

Our sustainability model means we make your shirt especially for you and only after you order it, eliminating excess inventory waste and unnecessary wholesale transport. We partner with production facilities worldwide, so your order ships from the location nearest you, significantly reducing shipping distances and carbon emissions.

While your shirt arrives in a plastic pouch, this lightweight packaging protects it from damage, spills and weather during transit, helping reduce product waste and the need to duplicate production impacts. Our packaging can be recycled at many soft plastic collection points across the US and globally, like grocery stores or recycling hubs. Lighter packaging also lowers shipping emissions compared to heavier alternatives.

We continually evaluate our packaging choices to ensure the smallest environmental footprint. Cardboard packaging is approximately 50 times heavier than soft plastic packaging. We choose packaging for real impact, not just optics, prioritizing what truly reduces waste and emissions. This careful approach balances protection, sustainability and responsibility, so your purchase supports both product quality and the planet.

For the best fit, use the size chart located on each product page just below the price. It includes detailed measurements for every size to help you choose confidently. If you’re between sizes or would like extra guidance, our customer service team is happy to help. Checking the chart before ordering ensures your shirt feels comfortable and looks great.

We ship to most countries worldwide. Delivery times and postage costs will depend on your location. For full details on destinations, pricing and timeframes, please see our shipping policy or simply start the checkout process and your precise shipping costs will be calculated before you complete your purchase.

Once your order ships, you’ll receive a confirmation email with a tracking number. We’ll also send you email updates as your package moves through stages of delivery, so you can follow its journey right to your door via the carrier’s tracking page.

If you’d like to modify or cancel your order, please get in touch with our customer service team right away. We’ll do everything we can to help, but if the item is already in production or has been shipped, changes may not be possible. Full details can be found in our Refund Policy.

You can get in touch with our customer care team by emailing support@seastainable.shop or by providing your email address below. We aim to reply to all messages within 24 hours.