Every RTTO design is printed on demand — which means nothing is made until someone orders it. No deadstock, no overproduction, no excess inventory ending up in landfill. We make what’s actually wanted, and nothing more.
Most orders are also fulfilled in the country where they’re placed, cutting down on the distance (and emissions) each shirt has to travel before it reaches you. At checkout, you’ll also find an optional carbon-neutral shipping add-on if you’d like to offset the footprint of your order further.
We’re careful about who we partner with to produce our garments. We don’t claim every product is certified “eco-friendly” — but we do choose manufacturing partners who are generally eco-minded in how they operate: using less water in production, and eco-friendly inks that also happen to give you a better-quality print, without the inflated price tag that often comes with a formal “sustainable” label.
It’s not a perfect system, and we’re not going to pretend it is — but it’s a thoughtful one, built around reducing waste, reducing distance, and choosing partners who care about how a product gets made, not just what it looks like.
Long sleeve details:
100% Airlume combed and ring-spun cotton
Heather colours: 52% combed and ring-spun cotton, 48% polyester
Athletic Heather & Black Heather: 90% combed and ring-spun cotton, 10% polyester
Fabric weight: 4.2 oz./yd.² (142.4 g/m²)
32 singles
Regular fit
Side-seamed construction
Crew neck
Cover-stitched collar
2″ (5 cm) ribbed cuffs
Heather Mauve, Heather Deep Teal, and Heather Forest colour options may require extra shipping time to Australia (allow an additional 3–4 weeks). Thanks for your patience—these shades are worth the wait!
Eco-Friendly & Ethical Manufacturing:
Made by BELLA+CANVAS, this tee is produced with responsible practices, including reduced water use, energy-efficient facilities, and waste reduction, all in WRAP-certified factories that prioritize fair labor and environmental standards.
EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, phthalates and formaldehyde level requirements.
In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
Show your passion for ocean giants and sustainable style. The RTTO Oceanic Manta Long Sleeve Tee features exclusive artwork by Ryan Chadwick, created in partnership with Return to the Ocean. With every purchase, 15% of profits are donated directly to Manta Trust (dedicated to the research and protection of manta rays worldwide), and another 15% funds RTTO’s own conservation projects—helping protect these graceful creatures and their habitats.
Versatile and comfortable, this long sleeve tee is perfect for layering or wearing solo—ideal for adventures, casual days, or simply making a statement for the sea.
Why This Tee?
Features exclusive oceanic manta illustration by Ryan Chadwick, celebrating the beauty and importance of manta rays
15% of profits donated to Manta Trust, plus 15% to RTTO’s own conservation projects—your purchase supports real ocean research and protection
Limited edition: when it’s gone, it’s gone—each tee is part of a movement, not mass production.
