The seams are very well made and absolutely not disturbing. I washed it. At 40 degrees delicates in the washing machine TUMBLE they can also, but only on the gentle cycle. Iron can be at level 1. After washing, I let them dry in the air and they were quick to dry and do not deform.
You sit very comfortable and feel great on your skin. They are light in transparent knows what not disturbing if you're wearing a pair of pants over it. But if one has a skirt on, then can already be uncomfortable in certain situations. The quality, however, is true and I give them 4 good star.