I purchased these earplugs for when I travel, and have to take long flights. I’m really impressed with the quality of them. The material is a soft silicone type, and feels almost weightless. They fit perfectly in the ear canal. The material is also non-toxic, and the clear portion can we washed. I had them in my ears for up to 7 hours and didn’t experience any discomfort which for me was the most important factor, comfort. They also come with a great aluminum container. Overall, I’m satisfied with my purchase.