We bought a yoga mat which slides (doesn't stick to the floor) while you exercise and leaves foot marks on the mat even in the first try.
They'll accept the return but we already paid shipping and return shipping is the same as the cost of the mat.
The supervisor I spoke to on the phone at Gaiam, was rude, couldn't care for customer and evasive. She even stated that they don't guarantee that the mat will stick to the floor.
Never buy anything from them.