Review on 🎧 Sony CS-E01ARM Sleeve Armband for NW-E103, NW-E105, and NW-E107 MP3 Players with Enhanced SEO by Marc Gallner

Yes, it breaks and wears out. Mine lasted two years of bullying: I exercised three days a week, the remaining days I rode my bike and ran. Consider an alternative if you can find one. I'll buy another one because I can't be without it. I wear mine tight enough to stay on my arm and rest it on my biceps or triceps (depending on activity) so it doesn't have to endure sideways movements. This helps reduce fatigue from the case's small silicon straps. :-)