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 Guide
Size Guide
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
How to measure
To choose the right size, follow the steps below:
Use a measuring tape for maximum accuracy (flexible tape, if possible).
Measure your chest
Wrap the measuring tape around the fullest part of your chest, just under the arms and across the
shoulder blades. Keep it horizontal and snug, but not tight.
Measure your waist
Find the narrowest part of your torso, just above the belly button. Wrap the tape around your waist
comfortably, leaving space for one finger.
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
Size Guide
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
How to measure
To choose the right size, follow the steps below:
Use a measuring tape for maximum accuracy (flexible tape, if possible).
Measure your hips
Stand with your feet together and wrap the tape around the fullest part of your hips, keeping it level
and snug but not tight.
Measure your waist
Measure your waist at the narrowest part, usually just above the belly button. Wrap the tape snugly
around your waist, leaving a finger's width for comfort.
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.
The Bone Yard Collection brings a sharp, skull-driven aesthetic to the performance hats Alter Ego is known for. Each design carries that clean, edgy look that just works, on runs, in the ...
The Bone Yard Collection brings a sharp, skull-driven aesthetic to the performance hats Alter Ego is known for. Each design carries that clean, edgy look that just works, on runs, in the gym, or with your everyday lineup. These are the pieces people reach for because they feel good, look tough, and move with you.
No gimmicks. No costume energy. Just lightweight, breathable, durable hats with artwork that stands out in all the right ways. The Bone Yard Collection is built to be worn year-round, designed for anyone who likes their gear with a little extra bite.
Product Features
Each Bone Yard hat carries a strong, standout look without compromising the performance you expect from Alter Ego.
Lightweight, breathable fabrics built for comfort on the move
Moisture-wicking performance that keeps sweat under control in any training environment
Skull-inspired styles with mesh backs for extra airflow and ventilation
Warm, insulated options designed for colder runs and brisk mornings
Adjustable snapbacks for a dialed-in fit that works across all head sizes
Durable construction made to handle heavy mileage and everyday wear
Bold, distinctive designs that add edge to your gear all year long
Brand Story (A Note From the Founders)
At Alter Ego, we believe gear should bring personality and performance. The Bone Yard Collection reflects everything we left our corporate jobs to build, products rooted in community, identity, and adventure.
Every hat is crafted with dialed-in fit, premium materials, and the performance standards our team stands behind. These designs add edge to your everyday look without sacrificing comfort or durability.
Bone Yard Style & Everyday Versatility
The Bone Yard Collection is built for year-round wear, blending standout style with true performance. These hats aren’t made for a moment, they’re made for mileage.
For daily training, the breathable, sweat-ready materials keep you comfortable during runs, workouts, and everything in between.
For colder days, insulated options give you warmth without the bulk.
For everyday outfits, the skull-inspired designs add a sharp, distinctive edge that fits any setting.
Why choose a hat you’ll wear once when you can have a go-to performance cap built to last, and built to turn heads every time you reach for it?
Bone Yard Hats Frequently Asked Questions
No. Our Bone Yard hatsare built for both style and performance, so you can keep them in rotation year-round.
Yes. We have a variety of Bone Yard hats for men and women, all designed with adjustable fits for all-day comfort.
Yes. In addition to lightweight options, we also offer insulated hats and beanies that provide warmth during chilly fall nights and cold-weather runs.
No washing machine is needed. Simply rinse in cool water and shake out, and it’s ready to wear again.
Our hats are not just one-off costume pieces. They are premium performance hats that combine festive designs with the same breathable, durable, and stylish quality you already love from Alter Ego.
Introducing the trotter fit, our modern interpretation of a classic hat that is sure to impress.
Shop the look
Elevate your running game with the cruiser fit - a premium, unstructured running hat that looks and feels fast, while The drifter fit was designed with modern style in mind, featuring a horizontal shape and flat brim that offer a sleek and contemporary look.
