Three friends laughing together on a forested coastal cliff overlooking the water and discussing their favorite sustainable t-shirt brands.

The Best Sustainable T-Shirt Brands for Eco-Friendly Merch

Not all sustainable t-shirts are created equal, and finding a brand that actually delivers quality products takes more than reading a label.

Wearing and selling sustainable apparel is no longer a niche concern — more and more individuals and organizations are making environmental commitments, consumers are asking better questions about the quality of products they buy and wear, and more certifications exist to hold manufacturers accountable. But that progress has also made the landscape harder to navigate. Not every brand that leads with sustainability language has the supply chain transparency to back it up, and the details that distinguish a genuinely responsible product from a marketing-forward one rarely surface in a quick search. 

This guide cuts through the complexity of sourcing sustainable, high-quality merch blanks. We have evaluated five of the most credible sustainable merch brands — Allmade, Stanley/Stella, Econscious, Bella+Canvas, and AS Colour —so that you can choose the eco-friendly merch that best suits your needs.

The Best Sustainable T-Shirt Brands

Brand Known For Certifications Popular Products
Allmade Ethical labor story, mission-driven merch RCS, OCS, OEKO-TEX, GOTS, GRS AL2004 Unisex Tri-Blend Tee, AL2100 Unisex Organic Cotton Tee, AL2015 Women’s Relaxed Scoop Neck
Stanley/Stella Certification depth, print performance, size range GOTS, GRS, OEKO-TEX, PETA Creator Tee 2.0 (SATU001), Cruiser 2.0 Hoodie (SASU003), Changer 2.0 Crewneck Sweatshirt (STSU823)
Econscious Budget-friendly organic blanks, hemp options GOTS, OCS, GRS, RCS EC1000 Classic Tee, EC1080 Blended Eco T-Shirt, EC3000 Women’s Classic Tee
Bella+Canvas Print quality, low-waste US manufacturing WRAP Certified, GRS, FLA 3001 Unisex Jersey Short Sleeve Tee, 3413 Unisex Triblend Tee, 3719 Sponge Fleece Hoodie
AS Colour Supply chain transparency, premium basics OEKO-TEX, Better Cotton Initiative, Amfori, GRS 5001 Staple Tee, 5101 Supply Hood, 5100 Supply Crew

Allmade

Allmade is a purpose-built apparel brand founded by screen printers who wanted to make a better shirt — one that was as good to print on as it was for the planet and the people making it. Every style in their line is carbon neutral, certified through Carbonfree®, and manufactured in fair-wage factories with worker-forward community investment programs.

Two people outdoors wearing Allmade sustainable t-shirts.

Allmade’s flagship sustainable t-shirt is the AL2004 Unisex Tri-Blend Tee, made from 50% Repreve recycled polyester, 25% organic cotton, and 25% Modal, a fiber derived from sustainably harvested beech trees. The result is one of the softest sustainable blanks on the market, and a material composition that covers three distinct sustainability angles in a single shirt. It also holds screenprint ink exceptionally well. Each shirt diverts approximately six plastic bottles from landfill — a concrete impact story your supporters can connect with.

Bottom line: Compared to some of the other brands, Allmade’s apparel line is a bit slim on color options. If you need more color depth in your merch, you may need to use a different brand for your blank merch.

Stanley/Stella

Stanley/Stella is a Belgian brand that has quietly become the most certified sustainable brand on the global market. With a recent US launch in 2025, American decorators and merch creators can finally access these high-quality, sustainable shirts. Through sites like Bonfire, you can offer your customers the impeccable quality that was once limited to Europe. 

Stanley/Stella models wearing organic cotton sweatshirt, tee, and hoodie.

Their most popular styles for custom merch include the Creator 2.0 Tee, a 180 GSM 100% organic cotton unisex shirt available in 80 colors (XS-5XL), the core fleece line features the Cruiser 2.0 Hoodie, a best-selling 350 GSM brushed fleece (80% organic cotton/20% recycled polyester) with metal-tipped drawcords, and the matching Changer 2.0 Crewneck Sweatshirt.

Bottom line: Stanley/Stella is still building US name recognition. For customer-facing brands where consumers will see the label, it may require a bit of education. For wholesale and print-on-demand, it’s a non-issue.

Econscious

Econscious is a leading sustainable apparel brand committed to using 100% organic and recycled materials. While most sustainable brands plant their flag on organic cotton and stop there, Econscious offers hemp-cotton blends (unique in this guide), recycled-cotton tees through their Reclaimist linke, and a 1% for the Planet business commitment on top of GOTS product certification. For outdoor brands, conservation organizations, and nature-themed merch, their earth-tone colorways and hemp options make them a natural fit.

Woman wearing a green Econscious t-shirt and carrying a woven tote bag on a forest path.

Their most popular styles for custom merch are the EC1000 Classic T-Shirt, a best-selling 5.5 oz 100% organic cotton ringspun jersey available in 13 colorways from S–3XL; the EC1080 Eco Blended T-Shirt, a lighter 4.25 oz blend of 60% organic cotton and 40% recycled polyester, sewn in a Fair Trade certified factory verified by Flocert; and the EC3000 Women’s Classic T-Shirt, the same 5.5 oz organic cotton construction as the EC1000 in a fitted cut with a cotton/spandex rib neck, available S–3XL in 11 colorways.

Bottom line: The style and color range are more limited than Stanley/Stella, and extended sizing tops out at 3XL. If fashion-forward silhouettes, fresh colors, or a wide size range are a priority, it may not be the first choice for your merchandise.

Bella+Canvas

Bella+Canvas is a Los Angeles-based brand that has become one of the most widely used blank apparel lines in the custom merch industry — and one of the few mainstream brands with a genuine sustainability story to back it up. Their LA facilities are solar-powered, use 7x less water than the industry average, and are WRAP certified for ethical manufacturing. 

Stack of folded Bella+Canvas t-shirts in pink, peach, yellow, green, blue, and purple.

Their most popular styles for custom merch are the 3001 Unisex Jersey Short Sleeve Tee — one of the industry’s best-selling blanks, a 4.2 oz Airlume combed and ring-spun cotton jersey available in 86 colorways. The 3413 Unisex Triblend Tee is a lighter 3.8 oz blend of polyester, Airlume cotton, and rayon in 66 colorways that delivers the soft, heathered texture retail brands love, and the 3719 Sponge Fleece Pullover Hoodie, a mid-weight fleece built on the same low-waste LA manufacturing platform as the rest of the line.

Bottom line: Bella+Canvas is the right pick when print quality and color range matter most — if certified organic fiber is a must-have for your campaign, pair them with one of the other brands in this guide.

AS Colour

AS Colour is a New Zealand-born brand that has built a reputation for premium basics and supply chain transparency that most mainstream apparel brands can’t match, publishing their full factory list and ranking 5th in the 2024 Ethical Fashion Report among 460 assessed brands. Their core range is built on high-quality combed cotton with a growing organic and recycled line, backed by OEKO-TEX, GRS, and Better Cotton certifications.

AS Colour black eco-friendly t-shirt on a model outdoors in a mountain landscape.

Their most popular products for custom merch are the 5001 Staple Tee, AS Colour’s self-described best-selling style and a decorator favorite built from 5.3 oz 100% combed cotton in 70+ colorways, the 5101 Supply Hood, a mid-weight cotton-rich anti-pill fleece pullover with raglan sleeves and a lined hood, and the 5100 Supply Crew, the crewneck companion to the Supply Hood in the same fabric.

Bottom line: AS Colour’s strength is premium quality and supply chain accountability — if you also need certified organic fiber across the full range, Stanley/Stella or Econscious have you covered.

Sustainable Apparel Certifications Explained

Before you trust a sustainability claim, check the certifications behind it. Certifications vary widely in what they cover. Some verify materials, others verify labor, and a few are business-level pledges that say nothing about the garment itself. Here’s a quick breakdown of the certifications:

Certification What It Covers Who Holds It
Global Organic Textile Standard (GOTS) Organic fiber from seed to finished garment — covers farming, dyeing, finishing, and labor practices. The most rigorous organic textile certification available. Stanley/Stella, Econscious, Allmade
Global Recycled Standard (GRS) Independently verifies recycled content claims at every step of the supply chain. Prevents greenwashing on “recycled” materials. Stanley/Stella, AS Colour, Allmade
OEKO-TEX Tests the finished garment for harmful chemicals and substances. Covers what’s in the shirt, not how it was made. Stanley/Stella, AS Colour
Fair Trade Certified Ensures fair wages, safe working conditions, and worker rights at the factory level. A portion of sales funds community development. Allmade
Fair Wear Foundation Ongoing independent audits and active improvement of labor conditions across all factories. Not a one-time certification — requires continuous improvement. Stanley/Stella
bluesign® Certifies that dyes, chemicals, and finishing processes meet strict environmental and safety standards. Focuses on what goes into the dyeing process. Bella+Canvas
WRAP Verifies ethical, humane, and lawful manufacturing practices at the facility level. Covers workplace safety, labor rights, and environmental compliance. Bella+Canvas, Econscious (hat factory)
Amfori A supply chain audit program that assesses factories against a code of conduct covering labor rights, health and safety, and environmental standards. AS Colour
Better Cotton Initiative Trains farmers in lower-pesticide, water-efficient growing methods. A systemic improvement program, not a product-level cert — Better Cotton fiber is mass-balanced, not traceable to a specific garment. AS Colour
PETA Vegan Confirms no animal-derived materials, such as wool, leather, or down, are used in the product. Stanley/Stella
Recycled Claim Standard (RCS) Verifies that a product contains at least 5% recycled material and traces that content through the supply chain. Allmade, Econscious
Organic Content Standard (OCS) Tracks and verifies the presence and percentage of organically grown material in a product from source to final product, but does not cover how the garment was dyed or manufactured. Allmade, Econscious

We can all make a difference by taking small steps to search for more eco-friendly options in every part of our lives. As more people look for sustainable brands, offering your customers a t-shirt that is soft, high-quality, skin-friendly, and kind to the earth will help you stand out while taking a positive step towards a better future.

FAQs

What makes a t-shirt truly sustainable?

A sustainable t-shirt combines three things: eco-friendly materials (organic cotton, recycled fibers, or low-impact alternatives), ethical manufacturing (fair wages, safe conditions, no forced labor), and transparent supply chains you can actually verify. Certifications like GOTS, Fair Trade, and GRS are the clearest way to confirm these claims are real, not just marketing.

What is GOTS certification, and why does it matter?

GOTS (Global Organic Textile Standard) is the most rigorous organic textile certification available. Unlike basic “organic cotton” labels, which only certify the raw fiber, GOTS covers the entire production chain — from farming through dyeing, finishing, and manufacturing. It prohibits toxic dyes and chemicals, requires fair labor conditions, and is independently audited. If you see GOTS on a label, that’s the most reliable sustainability signal in the category.

Is Allmade a good blank for custom printing?

Yes, especially for screen printing. The tri-blend (recycled polyester, organic cotton, TENCEL Modal) provides a smooth, slightly stretchy surface that holds plastisol and water-based inks very well. For DTG printing, Stanley/Stella’s tighter-knit cotton construction gives sharper results. Both are strong choices; the right one depends on your printing method.

Is Bella+Canvas sustainable?

Yes! Bella+Canvas isn’t certified organic, but their sustainability story is genuine and worth understanding. Their Los Angeles facilities are solar-powered, use 7x less water than the industry average, and are WRAP certified for ethical manufacturing. They’re the right choice for buyers who prioritize low-waste US manufacturing and premium print performance over organic certification.

What is AS Colour known for?

AS Colour is a New Zealand-born brand known for premium basics with serious supply chain transparency. They publish their full factory list, hold OEKO-TEX certification, use GRS certified recycled polyester, are Better Cotton Initiative members, and ranked 5th in the 2024 Ethical Fashion Report among 460 assessed brands. Their organic cotton range is GOTS licensed and growing.

Where can I buy these brands for custom printing?

You design and sell or place a custom order for these brands from Bonfire.com. If you’re looking for the perfect sustainable campaign, consider offering these eco-friendly options and donating a percentage of your profits to a non-profit dedicated to sustainability through a partial giving campaign.

How do I care for sustainable t-shirts so they last longer?

Wash in cold water on a gentle cycle. Turn garments inside-out to protect both the fabric and any printed design. Air dry instead of machine drying as heat is the primary cause of shrinkage in organic cotton and pilling in recycled polyester blends. Spot treat stains rather than running a full hot wash whenever possible. These habits alone can double the lifespan of a quality tee.

Is sustainable apparel worth the higher price?

Yes, when you factor in cost-per-wear, the math is usually still on sustainability’s side. A $10 conventional t-shirt that fades and pills after 20 washes costs more per wear than an $18 Allmade tri-blend that’s still going strong at 100 washes. Add in the ethical and environmental value, fair wages, diverted plastic bottles, no toxic dyes, and the price gap closes, and it’s a win-win.

Katie Davis is a Customer Support Rep and Contributing Writer at Bonfire. With over 10 years of customer service experience and a strong passion for writing, she loves combining these to provide expert advice to our blog readers. Her favorite product is the Unisex Changer 2.0 Crewneck Sweatshirt from Stanley/Stella.

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