Samson Zing It 1.75mm Red Throwline

When you are standing at the base of an 80-foot oak trying to isolate a specific union for your climbing line, the throwline in your cube is either your best friend or your worst enemy. The Samson Zing It earns the former status through its 100% Dyneema construction and Samthane coating — a combination that delivers tangle-free deployment, minimal branch friction, and high canopy visibility in a 1.75mm package. The thinner diameter is the key performance advantage here: it creates less drag over bark than standard 2.2mm lines, which means your throw weight carries farther on the same effort and you can step down to a lighter weight for high sets without sacrificing reach. The 500 lb tensile strength is purpose-matched to throwline duty — more than enough to handle aggressive retrieval from crotches and snags without any worry of the line parting.

The Samthane coating serves double duty as both a visibility enhancer and a surface protector. The bright red color tracks well against green canopy and gray bark, making branch isolation significantly easier when you are manipulating the line from 70 feet below. Dyneema itself is inherently UV-resistant and does not absorb water, so the line maintains consistent weight and handling characteristics whether you are working in morning dew or afternoon sun. Storage is effortless — coil it into a cube or stuff it into a bag and it deploys identically every time with zero memory coils or kinks. The practical trade-off is that Dyneema's slick surface makes bare-hand grip challenging, particularly in wet or cold conditions, and most standard knots will slip on this material. Professional arborists typically pair the Zing It with a spliced eye or a dedicated throwline storage system for best results.