Designed for sports use, the Adidas x Sennheiser CX 680 ($TBA) features a unique moisture control system that's resistant to both water and sweat. Along with multiple parts covered in highly-flexible, shock-absorbing material, the CX 680 Sports Headphones comes with an integrated volume control, shorter Dupont Kevlar reinforced cable, EarFin holding system as well as different sizes of ear adapters to stay in place and provide a secure fit in the ear canal.