Sunray Sinking Fly Lines are made for accurate, deep-water casting in rivers, lakes, and saltwater. Built with durable Kevlar® cores and advanced density control, these lines sink at an ideal rate, staying stable for effective underwater presentations. With abrasion-resistant coatings, Sunray sinking lines hold up well in a range of conditions, from calm waters to faster currents. The steady sink rate helps reach target depths smoothly, offering a dependable choice for anglers fishing deeper waters. Backed by over 45 years of expertise, Sunray’s sinking lines combine easy casting with reliable depth control.