Stretch 'n Slide is an adjustable bungee dock line with seven built-in loops and a sliding cinch: drop a loop over the cleat, snug the slider, done. No knots, no guessing the length, nothing to untie when you leave. Sold as a 2-pack, it ties up anything from a PWC to a small center console in seconds.
The short answer: Bungee dock lines hold a boat snug at the dock while absorbing wake and tide shock. Stretch 'n Slide — the original multi-loop version, introduced in 2006 — fits any span to roughly 7 feet using seven loops and a sliding cinch, no knots required. Temporary docking and rafting only.
What is a bungee dock line?
A bungee dock line is a dock line with a shock-absorbing stretch core, and it does two things a static rope can't: keep constant tension, so the boat stays put instead of wandering and snapping taut, and absorb shock, so wakes stretch the line instead of jerking your cleats and hull. Even conventional dock-line wisdom agrees stretch is the point — nylon's roughly 15 to 20 percent give under heavy load is what spares deck hardware, and boaters bolt rubber snubbers onto lines that don't stretch enough. A bungee dock line is that shock absorption built in rather than bolted on.
One boundary before the loops: if you're trying to hold a boat off a beach — a bungee anchor line — that's a different tool called Anchor Buddy, and the side-by-side comparison lives in the Anchor Buddy guide.
Why stretch beats slack at a busy dock
A static line gives you two bad options: leave slack, and the boat surges around and bangs between the fenders; pull it bar-tight, and every passing wake shock-loads the cleats. The bungee core splits the difference — it holds the hull snug against its fenders and soaks up the surge, so the load arrives as a long pull instead of a jerk. At a weekend fuel dock, where wakes roll through every few minutes, that snubbing is the difference between hardware that lasts and cleats that work a little looser each season.
How does the seven-loop cinch work?
Seven loops are daisy-chained along a 4-foot line, so one of them always matches your cleat-to-cleat distance — any span up to roughly 7 feet, whatever the dock height. Dock lines are always the wrong length; this one comes with seven to choose from. The sliding retainer does the locking: drop the end loop over the cleat, pull the cinch snug, and it locks around the cleat base. The patent (US 7,891,058) is printed on the yellow grip sleeve — this is the design the imitations imitate.
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Fix one end to your boat cleat
The fixed end lives on the boat, so every tie-up starts from a known point.
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Pick the loop that reaches
Choose the loop that meets the dock cleat with light tension — not the one that droops, not the one you have to fight.
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Drop it over and snug the cinch
The slider locks the loop around the cleat base. That's the whole knot.
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Leaving? Lift the loop and go
Nothing to untie — which matters at a fuel dock with a queue behind you.
Any craft in the small-to-midsize range is fair game — PWC and jet skis, runabouts, small center consoles — and so is any crew member. Guests who can't tie a cleat hitch (no judgment) can secure a boat with this in seconds; docking shouldn't require a knot-tying merit badge.
How do you raft up with bungee dock lines?
Pick the loop that fits each neighbor, and the party chain goes together in minutes, knot-free — cleat distances vary boat to boat, which is exactly the problem seven loops solve. The bungee cores then let the whole raft roll and flex with wakes as one piece, instead of static lines ripping at every cleat down the chain.
Rafting has house rules worth keeping: the largest boat anchors first and becomes the foundation; boats join on alternating sides so the raft swings least; fenders go out before you approach (a common rule of thumb is one per 10 feet of boat length); come in dead slow; tie to cleats, never rails; and keep hands and feet out from between hulls. Remember the whole raft hangs off one anchor — make it a good one, set properly, per how to anchor a boat.
Who made the first bungee dock line?
Greenfield did. Dock Buddy, the world's first bungee dock line, was introduced in the 1990s and became a standard in the docking category worldwide. In 2006 Greenfield followed it with Stretch 'n Slide, the world's first bungee loop-line for docking and rafting — the multi-loop design that makes the line the perfect size, every time. Same family-owned company since 1959, and the record holds up: Stretch 'n Slide averages 4.8 of 5 stars across major marine retailers.
Dock Buddy is still in the lineup, sold inside the Greenfield dock kit alongside fenders and Rope Locks: hollow-braid polypropylene over a bungee core, sliding eye adjusters, 1,100 lb breaking strength — and it floats if dropped. Where Stretch 'n Slide gives you seven fixed choices, Dock Buddy slides continuously; both exist so nobody ties a knot. The kit has its own guide — dock protection: the whole tie-up in one box — or browse the docking collection.
Are bungee dock lines OK for permanent docking?
No — bungee dock lines are for temporary docking and rafting: fuel docks, restaurant stops, passenger pickup, an afternoon at the sandbar.
Never leave any bungee-style line — whatever the brand — securing a boat overnight, unattended, or in severe weather; UV wear and sustained extreme loads are the enemies of a shock cord. For a boat that lives in a slip, use conventional mooring lines and save the stretch for daytime stops.
Common questions
What's the difference between Anchor Buddy and Stretch 'n Slide?
Anchor Buddy is an anchor line: it stretches from 14 to 50 feet between your anchor and your bow to park the boat off a beach. Stretch 'n Slide is a dock line: 4 feet stretching to roughly 7, with seven loops, for tying up at a dock or rafting to another boat. Different jobs, different ends of the day.
How long is Stretch 'n Slide?
4 feet relaxed, stretching to roughly 7 feet — and the seven loops along its length mean one of them fits nearly any cleat-to-cleat distance in between. That's the point of the design: the line is the right length because you pick which loop makes it so.
Will it work for my jet ski?
Yes — PWC and jet skis are core users, along with runabouts and small center consoles. The 2-pack covers bow and stern, the loops drop over a cleat in seconds, and the bungee core keeps a light hull snug instead of letting it slap around in wake chop.
Can I pull a tube with it?
Never. No bungee dock line is a tow rope — not for tubes, not for skiers, not for towing another boat. Bungee cord under towing loads is a hazard, full stop. Use a proper tow rope for pulling, and keep the stretch lines at the dock, where the give is the feature.
What is Dock Buddy?
Dock Buddy is the world's first bungee dock line, introduced by Greenfield in the 1990s. Today it's sold inside the Greenfield dock kit alongside fenders and Rope Locks — a slide-adjustable bungee line with 1,100 lb breaking strength that floats if dropped. Stretch 'n Slide is its multi-loop successor, sold on its own as a 2-pack.