This is a Lululemon dark forest green wide headband.
Here is a full view of the front of the headband. It is double layered.
Here is a close up of the front. You can see the larger silver omega Lululemon in the middle.
Here is a full view of the side of the headband. You can see that it is a wide headband.
This is a close up of the label. It says that it was Designed in Vancouver and Made in Canada.
I have several of these headbands and love to wear these when running or during yoga class. I tend to like the plain colored ones though they have quite a variety of different patterns, too. How many do you have?