Hello dear Migros I bought about 10 sleeveless underwear from the "Keep Cool" line (John Adams brand) a few years ago. These things are phenomenal. They are very comfortable to wear, dry extremely quickly, keep the body dry, no static charge. And best of all, they don't smell at all. I can wear them for weeks without them starting to stink. I've been wearing them every day for years, usually under a T-shirt. But the years have left their mark. Unfortunately, I could no longer find them, but this week they turned up again in Migros. I found out that, depending on the season, the "keep cool" or "keep warm" version is on the hook. I was really happy and bought one (7613346060909) to test out the size. Then came the shock. The bodysuit was so statically charged that fireworks went off when I put it on. What's more, the surface suddenly had a microfiber feel. With my rough hands, I was almost stuck to it. The bodysuit not only stuck to my hands, but also to my T-shirt. When I lift my arms, I can pull the T-shirt down again every time afterwards. In short: a totally different product. I then compared the composition of the materials. Old, good version: 88% polyamide, 12% elastane (made in China) New, useless version: 92% polyester, 8% elastane (made in Poland) I now have to look further. At least now I know what to look out for: Polymide and elastane.