If you're a fan of workout clothes made from eco-friendly fabric such as bamboo, then you're going to love Fila's new green apparel. The brand just announced its collaboration with AmericanForests.org, and with it comes a line of stylish clothes made from sustainable materials, including Tencel and recycled polyester.

I'm a fan of the Twist Back Tank ($45) made from Tencel, a fabric derived from natural cellulose found in wood pulp. When blended with Lycra, this fabric is extremely lightweight, flexible, comfy, and breathable. It's also fully biodegradable, so you can feel good about your impact on the environment. To see pics of Fila's other green products, read more.

I'm also loving Fila's adorable Drawstring Bottom Yoga Tank ($45). Also made with Tencel, it's a looser fit than the twist tank, so it's perfect if you don't like form-fitting workout clothes (especially during that time of the month). Both tanks are unique style-wise, and the softness makes you feel like you're hardly wearing anything. They're great for moderate activity, but if you're going to be bouncing or jumping, I'd definitely wear a sports bra underneath (the built-in shelf bra isn't very supportive).

The Flower Sleeveless Tee ($40) is made from recycled polyester, so it's stretchy and dries quickly. If you're just looking for bottoms, Fila also makes Roll Down Pants made from bamboo ($65). I'll admit that I never wore too many clothes made by Fila, but now that they're becoming more eco-conscious, I'll definitely have my eye on this brand.