As soon as you get them out of the box, they are ready to pair. Its not to loose not to tight its a perfect fit I bought medium thinking it might be a little tight but it is perfect for my shape . Als eine Hülle zum Schutz von Kratzern etc ist sie vollkommen ok. These are nice and roomy for her and lightweight so she can run around no problem. The one I received looked like it was a different type of plastic. Sandales out et indoor de qualité, adaptées pour mes usages. Die Bedienung ist sehr einfach. However I also ordered a SONY MDRZX110 which is the old model that this one is supposed to replace. Batallo mucho en encontrar sandalias de mi talla (soy 10. First and most important advice I can give is be honest about your waist size when ordering this belt.