X50 Original - Titanium Necklace

X50 Original necklace is designed to look stylish and sharp with square seam guards, featuring Phiten’s AQUA-TITANIUM® technology. The X50 Original is the most popular necklace among pro athletes.
• AQUA-TITANIUM® permeated soft nylon outer shell
• Flexible Micro Titanium Sphere Core
• Silicone X50 square seam guards
• Available in 6 colorways