Black performance hat with a white mountain logo on the front and a breathable black mesh back, designed for outdoor activities and durability.
Side view of a black cap featuring a white mountain emblem and lightweight construction, ideal for running, hiking, and casual wear.
Front view of a black performance hat with a bold white mountain logo and curved brim, perfect for active and everyday use.
Back view of a black performance hat with an adjustable strap and breathable mesh back, providing a secure and comfortable fit.
Interior and back view of a black performance hat with a breathable mesh panel and adjustable strap for added comfort and functionality.
Angled view of a black hat with a white mountain logo on the front, lightweight design, and sweat-wicking fabric for outdoor adventures.

Coaster Splash Black White Mountain

SKU: CO332


Size chart

Size Guide

Size Hat Size Inches CM
Small (S) 6 ½ - 7 ⅛ 20.5" - 22.4" 52cm - 57cm
Most Popular
STANDARD (Std.)
6 ⅞ - 7 ½ 21.7" - 23.6" 55cm - 60cm
X-LARGE (XL) 7 ⅛ - 7 ⅞ 22.4" - 24.8" 57cm - 63cm

How to measure

To choose the right size, follow the steps below:

Use a measuring tape for maximum accuracy (flexible tape, if possible).
Make sure the measuring tape is positioned to where your hat will be wore and neither too tight nor loose.
Measure on bare skin / over hair similiar to how you would wear your hat.
Compare your head measurements to those on our size chart, and choose the size closest to yours.

Size
  • Availability:
    In Stock
  • Backordered, shipping soon

Regular price
Price $49
/
Shipping calculated at checkout.


  • AER Splash™ water repellent technology keeps your hat from getting water logged. The water beads up and runs right off the hat, almost like magic!
  • HyperPoly+™ fabric for heightened sweat stain prevention (no white sweat lines)
  • Hidden AER Run Pocket! Store a key or fuel right inside your hat (select styles)
  • Ultra lightweight; light as a feather fabric
  • Extreme sweat wicking material to take on your toughest runs/adventures
  • Maximum durability for longer lasting colors (stays fresh as the day you got it!)
  • Low maintenance care. Wear, sweat, hand rinse cold (only), REPEAT! No washing machine required to stay fresh!

All orders received by 5:00pm ET are processed same-day, excluding Sundays and federal holidays. You'll receive a notification once your order has shipped, with a tracking number provided. We offer hassle-free returns and exchanges within 30 days of delivery. For any inquiries or assistance, please contact us atinfo@alteregorunning.com.

AER Splash™ Water Repellent Technology
Enhanced Sweat Dispersion
Ultra Lightweight Technology
Max Durability & Breathability
HyperPoly+™ Fabric
Reflective Safety Elements
AE UltraSnap™
Hidden AER Run Pocket!

Technology and Features

Technology Image 1

BREATHABLE MATERIAL

The lightweight material ensures optimal airflow and allows you to stay cool and fresh in the long run.

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WATER REPELLENT

Our hats are designed to stay dry during rain and provide you with all the comfort you need to meet your goals.

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DURABLE MATERIAL

The material is built for longevity, providing reliable wear through every run, no matter the conditions.

Technology Image 4

STYLISH DESIGN

The hat features a curved visor and a high-crown profile, making it a stylish addition to any outfit.

Technology Image 6

INNOVATIVE DESIGN

Experience peak performance with Alter Ego's innovative, comfortable, and stylish hat designs.

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Customer Reviews

Based on 2359 reviews
95%
(2245)
3%
(69)
1%
(23)
0%
(10)
1%
(12)
R
Ricardo G. (Guayaquil, G)
In love with this summer vivid colors hat!

Love the new summer collection ! All of them are a vibe uplifter essential !

J
Justin M. (Zebulon, NC)
I love the hats

Admittedly, I am a hat guy. I have loved Melin hats for a long time but it is hard to stomach what they are charging now. So, I have been in search of something that was equal quality but had better value. The search is over. These hats are amazing and reasonably priced. I have gotten more compliments about these two hats than any other hat I own. I have not done any training or playing pickleball in them yet so I am not sure if they will stain or not. I tend to stain hats when I sweat in them so I am a little scared to run in them. I might just wear them as my casual hats because they look so awesome. I am definitely going to purchase more. I love the variety. I wear a 7 5/8 fitted hat and the xl size was absolutely perfect for me. I just love them and it’s a small thing but I appreciate the personal note I got when I received these hats. Amazing hats, the colors pop… just a high quality hat.

A
Amie B. (Sullivan, IL)
In love ❤️❤️

I love alter ego hats and I may have an obsession with them but this is hand downs my favorite currently!! I’m 💯 in love with the color!! 😍😍

E
Eric

Fast shipping and great quality hat! Not sure if i missed the suprise of the skeleton on the product page, but its a nice touch!