MY BAG: Jason Day

October 05, 2015

"I've picked up 3 mph in ball speed with my new M1 driver. That's probably another 10 yards. I'm O.K. with another 10 yards."

DRIVER

TaylorMade M1 (10.5°)

taylormadegolf.com

Shaft: Mitsubishi Rayon

Kuro Kage Silver TiNi 70x

mitsubishirayongolf.com

FAIRWAY WOOD

TaylorMade

AeroBurner 3HL (16.5° plays to 14.5°)

Shaft: Mitsubishi Rayon

Kuro Kage Silver TiNi 80x

IRONS*

TaylorMade

RSi TP (3-PW)

Shaft: True Temper

Dynamic Gold X7

truetemper.com

WEDGES

TaylorMade

Tour Preferred EF (47°, 52°, 60°)

Shaft: True Temper

Dynamic Gold S400

PUTTER

TaylorMade

Ghost Spider Itsy Bitsy Black Prototype

BALL

TaylorMade

Tour Preferred X

GRIPS

Golf Pride

Tour Velvet Cord

golfpride.com

*Day swaps the RSi TP 3-iron for an RSi2 2-iron at some events.

TECH TALK

We Have Liftoff

Cobra King LTD driver

Cobra's R-and-D team partnered with the Center for the Advancement of Science in Space (CASIS), a government-run laboratory, to conduct research on the International Space Station. Insights on specific materials and constructions were then applied to the King LTD driver. The final product is packed with a carbon-fiber crown, a multithickness clubface, an adjustable hosel and a removable 16-gram aluminum-and-polycarbonate disk in the sole. Company officials say the club has the lowest center of gravity of any driver on the market plus a high MOI for added forgiveness on off-center shots. Testing shows that the King LTD generates faster ball speeds, higher-launching shots with less spin, and longer drives than competitors' models. $450; available on Nov. 13.

INSIDE STORY

A window in the sole, which resembles the International Space Station's observatory module, offers a cool view into the clubhead.

PHOTOANGUS MURRAY (BAG) PHOTOCARLOS M. SAAVEDRA FOR SPORTS ILLUSTRATED (DAY) PHOTOJESSE REITER (BALL) PHOTOCOURTESY OF COBRA (CLUB)

HOLE YARDS PAR R1 R2 R3 R4
OUT
HOLE YARDS PAR R1 R2 R3 R4
IN
Eagle (-2)
Birdie (-1)
Bogey (+1)
Double Bogey (+2)