Size	chest	waist
XS (0-2)	31-34"	79-86 cm	25-27"	64-69 cm
S (4-6)	34-37"	86-94 cm	28-30"	71-76 cm
M (8-10)	38-41"	97-104 cm	31-33"	79-84 cm
L (12-14)	42-45"	107-114 cm	34-36"	86-91 cm
XL (16-18)	46-49"	117-124 cm	37-39"	94-99 cm
XXL (20-22)	50-53"	127-135 cm	40-42"	102-107 cm

Size	hips	waist
XS (0-2)	34-36"	86-91 cm	24-26"	24-26"
S (4-6)	36-38"	91-97 cm	28-30"	71-76 cm
M (8-10)	38-40"	97-102 cm	30-32"	76-81 cm
L (12-14)	40-42"	102-107 cm	34-36"	86-91 cm
XL (16-18)	42-44"	107-112 cm	38-40"	97-102 cm
XXL (20-22)	44-46"	112-117 cm	40-42"	102-107 cm

Insulated

Performance Snapback Hat

Coaster Pro Splash Slate Insulated

Name: Coaster Pro Splash Slate Insulated
Brand: Alter Ego Running
SKU: CO516
Price: 79.0 USD
Availability: InStock

$79

Shipping calculated at checkout.

Color:Gray

Backordered, shipping soon

Choose Your Size:

Size Guide

Hat Size Guide

Size	Hat Size	Inches	CM
X-Small	6 ¼ - 6 ⅞	19.6" - 21.7"	50 - 55
Small	6 ½ - 7 ⅛	20.5" - 22.4"	52 - 57
Most Popular Standard	6 ⅞ - 7 ½	21.7" - 23.6"	55 - 60
X-Large	7 ⅛ - 7 ⅞	22.4" - 24.8"	57 - 63

All Alter Ego hats feature an adjustable closure for a personalized fit.

How to Measure Your Hat Size

To choose the right size, follow the steps below:

Use a measuring tape for maximum
accuracy (flexible tape, if possible).

Measure where the hat will sit, with
the tape snug but not too tight.

Measure on bare skin or over your
hair, similar to how the hat is worn.

Match your measurement to the
closest size on our chart.

STANDARD

X-LARGE

Coaster Pro Splash Slate Insulated

$79

Same-Day Processing - Est. Delivery: 2-5 Days

Free Shipping

Free ground shipping on U.S. orders over $75

Fast Shipping

All orders placed by 5:00pm ET ship the same-day  
(excluding Sundays and federal holidays). 

Free Returns & Exchanges

Free and easy returns and exchanges within 30 days

Depth

SHALLOW MID DEEPER

Bill Curve

FLAT CURVED

Mid-depth crown for a balanced everyday fit.
Moldable curved bill for customizable coverage.
Adjustable closure provides a personalized fit.
Structured fit with a clean, supportive silhouette.

Clean by design. Engineered for the cold. The Coaster Pro Splash Slate Insulated is built for runners who expect performance to continue when the temperature drops. A soft sherpa lining creates the hat’s insulated construction, adding warmth and comfort while maintaining the lightweight, durable feel needed for extended efforts.

A sweat wicking performance band helps manage moisture through the miles, while laser cut side and rear panels promote airflow to keep the hat balanced in changing conditions. The tonal slate gray colorway and subtle Alter Ego detailing create a refined, monochromatic finish that keeps the focus on performance. Built for cold weather training. Designed to go the distance.

Sherpa lined interior creates insulated construction for added warmth and comfort
Engineered for endurance running in colder conditions
Sweat wicking performance band designed to help manage moisture during extended wear
Lightweight, durable performance fabric designed for lasting wear
Laser cut side and rear panels designed to promote airflow
Built for extended efforts and all day performance
Structured, mid height crown designed to maintain its shape
Adjustable snapback closure for a personalized, comfortable fit
Tonal slate gray colorway for a sleek, understated finish
Classic curved bill for a refined performance silhouette
Signature Alter Ego front and side detailing for an elevated finish

Water Repellent

Reflective Elements

Sweat Wicking

Hidden Pocket

Durable Fabric

Breathable Design

Lightweight

Custom Enclosure

No washing machines, no hassle. To clean your hat, rinse with water, shake it out or hang to dry, and you’re good to go.

Same-Day Processing - Est. Delivery: 2-5 Days

SKU: CO516

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The Modern Trucker

Sherpa Inside Liner

A soft sherpa inner liner traps warmth while providing exceptional comfort, helping you stay comfortable when temperatures drop.

VelProTech™ Enclosure

A cleaner way to lock in your fit. The VelproTech™ enclosure delivers smooth, low-profile adjustability that stays comfortable and secure in motion.

Ventilated Eyelets

Ventilated eyelets encourage airflow to help regulate temperature, keeping you comfortable through changing conditions without sacrificing warmth.

Built Better. Looks Better.

Performance

Premium performance headwear born from running so you feel lighter, freer, and ready to move. Stay comfortable in any condition and keep moving strong.

Quality

Durability you can count on. No sagging or fading, just headwear that keeps you confident and focused on feeling your best every day.

Endurance

Built to elevate your performance and your day the moment it goes on. Light, sharp comfort that lifts every movement and motivates you  to keep going.

Style

Clean, versatile headwear that helps you feel good wherever you go. Look sharp on the run, feel confident through the day, and live your alter ego.

Frequently Asked Questions

Most hats are adjustable and designed to fit a variety of head sizes. The adjustable closures ensure a secure fit for different head shapes and hair types.

It’s best to hand-wash your hat to preserve its shape and materials. Avoid using a washing machine to maintain its quality.

Absolutely. Whether you’re running, golfing, or simply cheering for your team, our hats are built with the best performance fabrics and adjustable fits that keep up with your most active days.

Yes. Every hat in the collection is designed to look great and perform well for everyone. With versatile styling and adjustable fits, these hats are truly unisex.

They do. All Alter Ego hats feature adjustable snapbacks for a custom fit, and we also offer Small and X-Large sizes with different circumferences and crown depths. This ensures comfort and performance no matter your head shape or size.

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Hat Size Guide

How to Measure Your Hat Size

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure where the hat will sit, with the tape snug but not too tight.

Measure on bare skin or over your hair, similar to how the hat is worn.

Match your measurement to the closest size on our chart.

Size Guide

How to measure

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure your chest

Measure your waist

Compare your chest and waist measurements to those on our size chart, and select the size that most closely matches your measurements for the best fit.

Size Guide

How to measure

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure your hips

Measure your waist

Compare your hips and waist measurements to those on our size chart, and select the size that most closely matches your measurements for the best fit.

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QUICK SEARCH RESULTS

Coaster Pro Splash Slate Insulated

Hat Size Guide

How to Measure Your Hat Size

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure where the hat will sit, with the tape snug but not too tight.

Measure on bare skin or over your hair, similar to how the hat is worn.

Match your measurement to the closest size on our chart.

Free Shipping

Fast Shipping

Free Returns & Exchanges

Hat Depth

The Modern Trucker

Sherpa Inside Liner

VelProTech™ Enclosure

Ventilated Eyelets

This Is Alter Ego

Built Better. Looks Better.

Performance

Quality

Endurance

Style

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Frequently Asked Questions

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Hat Size Guide

How to Measure Your Hat Size

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure where the hat will sit, with the tape snug but not too tight.

Measure on bare skin or over your hair, similar to how the hat is worn.

Match your measurement to the closest size on our chart.

Size Guide

How to measure

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure your chest

Measure your waist

Compare your chest and waist measurements to those on our size chart, and select the size that most closely matches your measurements for the best fit.

Size Guide

How to measure

Use a measuring tape for maximum accuracy (flexible tape, if possible).

Measure your hips

Measure your waist

Compare your hips and waist measurements to those on our size chart, and select the size that most closely matches your measurements for the best fit.

Use a measuring tape for maximum
accuracy (flexible tape, if possible).

Measure where the hat will sit, with
the tape snug but not too tight.

Measure on bare skin or over your
hair, similar to how the hat is worn.

Match your measurement to the
closest size on our chart.

Use a measuring tape for maximum
accuracy (flexible tape, if possible).

Measure where the hat will sit, with
the tape snug but not too tight.

Measure on bare skin or over your
hair, similar to how the hat is worn.

Match your measurement to the
closest size on our chart.

Use a measuring tape for maximum
accuracy (flexible tape, if possible).

Measure where the hat will sit, with
the tape snug but not too tight.

Measure on bare skin or over your
hair, similar to how the hat is worn.

Match your measurement to the
closest size on our chart.