The bottom has a textured, anti-slip rubber surface. I was running Windows 8. hermes is200 My ears get blocked every year or so. I have to wear two layers of socks. hermes is200 Great shoe nike quality hermes is200 Seems like these earbuds were engineered with their performance in mind before anything else, and thats okay with me. They have held up well with regular use. I would say it is true to size and I would go by the Amazon chart as opposed to the one in the pictures. hermes is200 It fits well and comfortable when working out. The seat is made from a soft rubber with no hard edges and the stirrups can be adjusted for your childs leg length.
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