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American Apparel Organics

Take your pick from USDA certified organic cotton T-shirts in jersey, v-neck, and basic rib styles for green hipsters (and toddlers, too) from sweatshop-free, Los Angeles-based clothiers, American Apparel.

Edun

Stylish, socially sensitive sartorial collaboration between rock icon Bono, his wife, Ali Hewson, and design star Rogan Gregory. Choose from denim, tees, dresses, and other separates. Fifty percent of the 2008 spring/summer collection utilizes organic fabrics.

Gap Inc.

The Gap goes green with 100 percent organic cotton tees for men available in v-neck, crew, and tank styles. This trendsetting American company—responsible for bringing affordable, casual basics to mallrats and fashionistas alike—also boasts remarkable environmental policies.

glo4life

"Eco-urban fashion" with arresting graphics—T-shirts are made from 100 percent organic, India-grown cotton and designed in Wales. Read all about the environmental policy of husband-wife design team Damian and Michelle before you buy.

Grn Apple Tree Clothing

Eco-edginess from designer Luis Antonio's men's SoCal streetwear and denim label, Grn Apple Tree. Check out the blog of this active label to keep up to date on events and new items.

H&M

Swedish retailer catering to the frugal and fashion-fixated unveiled organic cotton pieces—T-shirts, tunics, denim, dresses, and more for men, women, and kids—in the spring of 2007.

Horny Toad Roots T

Made with 100 percent organic cotton, this classic fit men’s T-shirt comes in three colors. It’s made with double-needle stitching so it’s durable and strong.

howies

Modish green threads, including T-shirts, from the UK. howies boasts simple but effective environmental beliefs and a vibrant online community. Want to pair deep thoughts with that new green T? Check out the Think section of the company's website.

Katharine E. Hamnett

British fashion icon Katharine Hamnett's bold, political slogan T-shirts from the 1980s are back … this time around in organic cotton for her "E" ("ethically and environmentally") line.

Loomstate

Fashion-forward denim and clothing line from Rogan Gregory, popular with discerning eco-shoppers, that uses old-world production methods and 100 percent organic cotton sourced from countries such as Turkey, Peru, Africa, and India. While you're at it, check out Loomstate's !Act Natural! blog.

Mission Playground Organic T-Shirts

Mission Playground generates trendy gear while "preserving the present." Viewing the earth as the ultimate playground, the company uses organic cotton fabrics, raises awareness, and donates 1 percent of all sales to environmental nonprofits through its S.E.E.D (Sustainable Environment & Educational Development) program.

Off Your Back Shirts

Socially conscious tees with quirky designs from this sweatshop-free clothier. A portion of profits are donated to environmental and humanitarian causes. Featuring the Name Tag T-shirt.

Organic White Tees

The 100 percent organic cotton, hand printed T-shirts from this Raleigh, North Carolina-based eco-enterprise aren't strictly white—choose from a selection of original designs.

Patagonia

Established outdoor clothiers meld high style and social accountability with 100 percent organic cotton T-shirts available in a variety of styles for man, woman, and child.

Poetique Couture

Poetique Couture makes their garments—including comfy T's, tunics, and more—from organic cotton fabric and azo-free dyes while supporting fair trade labor practices. The PC line is available in several boutiques nationwide, including Atlanta's Honey Nail Salon & Boutique.

Rawganique

Rawganique—a Canadian company known for its deep green beliefs and easy-on-the-eyes models—offers organic cotton T-shirts in a variety of styles. Hemp T's are also available.

Tonic

Tonic, a UK-based line founded by two graphic designers in 2004, specializes in ethical, edgy tees for men and women. Shirts (along with hoodies and tote bags) are made from ethically sourced, sweatshop-free organic cotton.

Turk + Taylor

Want to make a green, short-sleeved fashion statement? Take a gander at Turk + Taylor's organic cotton graphic T-shirts with bold, original designs. Looking for something a bit more formal? Check out the tailored line for guys and gals.

Under the Canopy Clothing

"Earth wise, style conscious" Under the Canopy offers unfussy, chic organic cotton pieces, including T-shirts. Want to add a dash of organic to more than just your wardrobe? Check out the companies' luxurious bedding and spa collections.

Zazzle Customizable organic cotton T-shirts

Get your family photo, a favorite quote, or an interesting image imprinted on your custom-designed organic cotton tee, available for men, women, children, and babies. Or, choose one of their pre-designed organic-cotton, earth-inspired options for the eco-activist in your life.

Blue Canoe New Energy Tee

Multi-purpose women's T-shirt suitable for the yoga studio or for decidedly less zen day-to-day activities. Made from 90 percent organic cotton and available in a variety of shades, the tee is colored with fiber-reactive dye that provides brighter color while making less of an environmental impact.

Earth Creations Organic Cotton, Clay-dyed T-shirts

Eye-catching, earth-friendly T's for guys and gals crafted from organic cotton and colored with natural, clay-based dyes.

Katherine E. Hamnett Organic Cotton Slogan and Plain T-shirts

British fashion icon Katharine Hamnett's bold, political slogan T-shirts from the 1980s are back … this time around in organic cotton for her "E" (*ethically and environmentally") line. Slogan shirts are printed with eco-friendly, water-based inks while plain colored T-shirts are dyed sans heavy metals and formaldehyde.

Rawganique Long-sleeve Hemp & Linen Knit T-shirts

Men's long-sleeve organic hemp and linen blend knit T-shirts from a leader in the sustainable style movement. Available in naturally dyed Bilberry Grey, Oak Brown, Oregano Green, Licorice Black, Russet Orange, and Burgundy.

World Centric 100 Percent Organic, No Sweat T-shirts

Get back to the basics with these fairly traded, organic unisex T-shirts produced in sweat shop-free conditions by the Nueva Vida Sewing Cooperative in Nicaragua. Shirts are not dyed.

2xist

Soy gets a burst of style in these T-shirts. From racer-back tanks to sporty Ts, they' got all kinds of athletic tops for the men in your life.

Bamboosa T-shirt

Bamboo chic made easy with this line of clothing, including T-shirts and dress shirts in a variety of colors and styles.

Colorado Trading & Clothing tee shirts

This company is the creator of SoyBu™, a cashmere-like amalgam of soy and bamboo fibers. T-shirts and other clothing products are available.

Downbound organic hemp T-shirts

Wide selection of organic hemp clothing, including turtlenecks, v-necks, polo shirts, and dress shirts for him and her.

HTnaturals men's and women's bamboo and hemp tees

Fashionable bamboo, hemp, and soy threads for green guys and gals. Soft, yet durable, they've got pants, Ts, dress shirts, and more.

Moseau bamboo tees and polos