---
title: "Si Woo Kim's WITB: a Cobra 5-wood in a Callaway bag"
url: "https://ifrothgolf.com/witb/si-woo-kim"
type: "whats-in-the-bag"
player: "Si Woo Kim"
tour: "PGA Tour"
author: "Jordan Hale"
published: "2026-09-21T00:00"
verified: "2026-09-18"
publisher: "ifrothgolf"
---


# Si Woo Kim's WITB: a Cobra 5-wood in a Callaway bag

> The 2017 Players champion qualified automatically for Medinah. His bag is Callaway almost throughout — with one Cobra fairway wood and a prototype putter that nobody will sell you.

**Setup verified:** 2026-09-18

Si Woo Kim went to Medinah as a top-six automatic qualifier for the International team, nine years on from winning the Players Championship at 21.

He is a Callaway staffer, but the bag has two things a staff bag usually does not: a Cobra 5-wood, and an Odyssey prototype putter that has never been a retail club. Above the irons there is an 11.5-degree mini driver whose head nobody seems able to agree on.

## Quick facts
- **Tour:** PGA Tour
- **Clubs:** Callaway
- **Driver:** Callaway Quantum Triple Diamond (8.5°)
- **Ball:** Callaway Chrome Tour

## The bag

| Club | Model | Spec |
| --- | --- | --- |
| Driver | [Callaway Quantum Triple Diamond](https://ifrothgolf.com/product/callaway-quantum-triple-diamond) | 8.5° · Fujikura Ventus Black 6 X |
| Mini driver | An 11.5° mini driver | set to 10.5° · Fujikura Ventus Black 7 X |
| 3-wood | Callaway Quantum Ti | 15° · Mitsubishi Diamana BB 83 TX |
| 5-wood | Cobra OPTM LS | 17.5° · Fujikura Ventus Black 10 X |
| Long iron | Callaway X Forged | 4-iron · KBS Tour V 125 |
| Irons | Callaway Apex MB | 5–PW · KBS Tour V 125 |
| Wedges | [Callaway Opus SP](https://ifrothgolf.com/product/callaway-opus-sp) | 52-10S, 56-10S, 60-08C · KBS Tour V 125 |
| Putter | Odyssey prototype |  |
| Golf ball | [Callaway Chrome Tour](https://ifrothgolf.com/product/callaway-chrome-tour) |  |

## Notes

The top of the bag moves. Between late August and mid-September the 3-wood disappears from one list, the mini-driver head is named three different ways across three reports, and the 5-wood loft is given as both 17.5 and 18 degrees. The lofts and shafts are stable; the heads are not, so the uncertain slots are described rather than pinned.

Off the gear: he signed with Primo at the start of 2026, the apparel brand owned by Grant Horvat — who has a bag on this hub of his own.

## FAQ

### What driver does Si Woo Kim use?

A Callaway Quantum Triple Diamond at 8.5 degrees on a Fujikura Ventus Black 6 X. It is the Triple Diamond head, not the Triple Diamond Max.

### Does Si Woo Kim play all Callaway clubs?

Almost. He is a Callaway staffer, but his 5-wood is a Cobra OPTM LS at 17.5 degrees and his putter is a tour-only Odyssey prototype.

### What irons does Si Woo Kim play?

Callaway Apex MB blades from 5-iron to pitching wedge on KBS Tour V 125 shafts, with a Callaway X Forged 4-iron above them.

### What wedges does Si Woo Kim carry?

Three Callaway Opus SP wedges — 52-10S, 56-10S and 60-08C — all on KBS Tour V 125.

## Sources
- [GolfWRX — Si Woo Kim WITB 2026 (27 Aug 2026)](https://golfwrx.com/785197/si-woo-kim-witb-2026-august/)
- [Today's Golfer — What's In The Bag: Si Woo Kim (updated 18 Sep 2026)](https://www.todays-golfer.com/equipment/witb/si-woo-kim/)
- [Golf Monthly — Si Woo Kim WITB 2026 (19 Apr 2026)](https://www.golfmonthly.com/tour/si-woo-kim-whats-in-the-bag-2026)

---

Source: [ifrothgolf](https://ifrothgolf.com) — independent golf-gear editorial.

Canonical URL: https://ifrothgolf.com/witb/si-woo-kim

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