Legendary Seamless Runners are the next step in lighter, stronger, and better climbing technology. With a core of spliced SK99 bio-based Dyneema inside a chafe and UV protective Dyneema cover, they weigh less, hold more, and last longer than any of the other runners on the market. With no clumsy, bar-tacked seam to get in the way, they’re easier to feed through piton eyes, quicker to rack, and easier to girth hitch to your swami belt or harness. Hand made in the USA and individually proof-loaded, they have been certified to EN 566:2017 and UIAA 104:2018 V3 standards for climbing loops. Being less bulky, they take up less space on the rack; being lighter, you can climb more freely; being more awesome, you can be so as well.
Available in four sizes: Short (8″), Shoulder length (23″/60cm), Double length (46″/120cm), and Triple length(72″/180cm). We have standardized the colors: Stubbies are gray; Shoulders blue, Doubles yellow, and Triples red. Custom lengths and colors are available, please send inquiries to benjaminzartman@gmail.com
As the slab-master Al Dude used to say: “You only climb as good as you look.” With Seamless Runners about your person, you’re gonna look pretty good.







