Scottish Golf Courses

Cobra One-Length Irons

Bryson DeChambeau reckons these clubs will transform your game - for the better

It’s almost a year since Bryson DeChambeau lit up the Masters Tournament. He finished in a tie for 21st at Augusta National, winning the low amateur spoils in the process, but it wasn’t just his play that got people talking - the clubs in his bag did so, too.

A quirky physics graduate, DeChambeau has gained notoriety for his scientific, analytical approach to the game. It’s not so much that he’s a non-conformist. He’s just not scared to ask ‘why?’ and to see if there is a better way of helping him realise his potential.

That’s what led him to investigate the potential of a single-length set of clubs. Yes, single length.

Along with his coach, Mike Schy, he built a prototype set of one-length irons, using a 7-iron length as standard, back in 2011. It took them two weeks, working three hours a night, but when he struck a 5-iron the exact distance he’d expect it to go, he knew he was onto a winner. œI turned to Mike and said, ‘This could be a game-changer’,” revealed DeChambeau. œWhether it’s from the rough, a side-hill lie, anything - I’m hitting the same type of shot and swinging the same way.”

DeChambeau signed an equipment deal with Cobra-Puma last April after turning pro following the Masters but any thoughts that he might ditch his single-length irons were soon dismissed. In fact, the opposite has happened, with Cobra-Puma bringing the clubs to market.


Every iron in the Cobra King F7 One Length family has been built to 7-iron length and weighting. They’ve also all been designed with ‘optimised geometry’ to give consistent trajectory and distance gapping.

Cobra’s research found these irons to have a real impact on people’s game, too. Accuracy, distance and dispersion were all improved across the board by the testers.

It also found the Cobra King F7 One Length irons simplified the set-up for players and led to more centre face impacts - one of the benefits of being able to put the same swing on every club.

In terms of tech, the one-length irons are very similar to the other irons in the King F7 family. They feature Cobra’s TECFLO technology that has allowed each iron to be built with the best performance characteristics for each loft. The new PWRSHELL face introduces a thinner face and sole structure to increase the size of the sweetspot for more distance and forgiveness.


The ‘Thin, Optimised and Personalised’ (T.O.P.) badge aids added distance and forgiveness. Lighter than steel, it allows more weight to be moved lower in the head.

There is also a forged set of one-length irons that is aimed at the better player. Each iron has a 100% CNC Milled face and grooves to give maximum spin and control over your ball flight. The 4-iron to 7-iron feature tungsten weighting to give a lower and more centred CG with the 4-iron to 8-iron boasting a TPU insert behind the hitting zone for better feel.

New specialty wedges round off the new Cobra King F7 One Length range. Available in 56˚ and 60˚ options, they are also built to 7-iron length and feature Cobra’s ‘notch technology’,
which makes the club sit more square and lower at address.

Still sceptical? Listen to Bryson. œJust try it,” he says. œIf you don’t, you’ll never know”. The man’s got a point.

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