Skip to content

Search

Account

Green cap with 'RK L' logo on a gray background
Man wearing a green cap with 'RK' logo, standing outdoors with sunlight filtering through.
Green cap with white logo on a gray background
Man wearing a green cap with 'RKL' logo outdoors
Black cap with 'Rookline' branding on a gray background
Person wearing a green cap with a logo, looking away from the camera.
Green cap with a brown brim on a light gray background

One Under Cap

The One Under Cap in Chive is built for the golfer who wants more from their headwear. A fitted golf hat engineered for the course; structured, lightweight, and made to stay in place from the first tee to the final green. Among the performance golf hats for men that deliver, the One Under proves a golf cap can do more than shade your eyes. Low-profile, clean-lined, and ready to match anything in your bag.

Regular price $45.00

Color: Chive
Size
Discover the Perfect Fit with Our Size Guide.
Measurements are in inches.


TOPS                    
    S    M    L    XL    XXL
CHEST    36-38   38-40   40-42   42-44   44-46
WAIST    30-32   32-34   34-36   36-38   38-41


BOTTOMS                  
    30/S    32/M    34/L    36/XL    38/XXL
WAIST    30-32   32-34   34-36   36-38   38-41
HIP    36-38   38-40   40-42   42-44   44-46
Size guide

Product Details

Fabric Content: 95% Nylon 5% Spandex

Product Care

Spot clean with soap and water.

Fit

Adjustable snap-back.

What to expect.

Fit

Fitted
Oversized
Fitted Oversized

Temperature Control

Breathable
Insulated
Breathable Insulated

Durability

Low Impact
Heavy Use
Low Impact Heavy Use

Hand Feel

Textured
Soft
Textured Soft

Going Low: About Rookline

Ahead of the U.S. Open, we spoke with Chris Mueller on 93.7 The Fan in Pittsburgh about our origins and our next moves here at Rookline. 

Read More →
  1. Free Shipping on all orders.

Search

SHOP

Shopping Cart

Your cart is currently empty

See our best sellers:

men's performance golf polo men's performance golf polo

Hudson 3-Button Polo with brrr°

$110.00

Hudson 3-Button Polo with brrr°
men's performance golf polo

Hudson 3-Button Polo with brrr°

Regular price $110.00
Color: Milled Stripe Summer Air
Size
Quantity
See Details
More payment options
The Hudson 3-Button Polo is the golf shirt you reach for without thinking. Engineered from quick-dry, breathable four-way stretch fabric, it moves effortlessly with you from first tee to last light. Sew-in collar stays and a lightweight fusible give the collar quiet structure, maintaining a clean, refined look throughout the...

Hudson Pull On Short

$110.00

Hudson Pull On Short
Hudson Pull On Short

Hudson Pull On Short

Regular price $110.00
Color: Dark navy
Size
Quantity
See Details
More payment options
The Hudson Pull-On Short delivers a refined balance of comfort and performance. An elastic waistband and stretch fabric provide ease of movement, while belt loops and a tailored above-the-knee fit offer a polished look that transitions effortlessly beyond the course. Designed with a 7 inch inseam. Take your true size,...
men's performance golf polo men's performance golf polo

Hudson 3-Button Polo with brrr°

$110.00

Hudson 3-Button Polo with brrr°
men's performance golf polo

Hudson 3-Button Polo with brrr°

Regular price $110.00
Color: Dimple Navy
Size
Quantity
See Details
More payment options
Long ago, golf balls were made of wood. The savviest players discovered that scratched, weathered balls flew straighter. That realization ignited one of the greatest innovations in the game's history: dimples. They made shots straighter, faster, farther. Simply put, dimples make the difference. So we made our own. The Dimple...
Shop now