Browse the ATN Mast Access Catalog. Used by cruisers and racers in 40+ countries since 1985.
Every ATN Mast Access product solves a specific problem faced by shorthanded and offshore sailors. Each is engineered to perform when conditions are worst.
The ATN Mastclimber is the only single-handed bosun's chair on the market that allows you to work at the masthead. The original solo bosun's chair. Fits any 3/8" to 5/8" halyard. Trusted by Vendee Globe skippers since 1990..
Designed by ATN and manufactured by CMI, this is the only ascender conceived to operate in a marine environment; manufactured with Stainless Steel, it will not rust.