Women's Underhoodie

Shipping calculated at checkout.
Color: White/Black Split with White/Black Split Hood
Size: XS

Whether you're pushing your limits at the gym, on the trail, or just unwinding at a favorite café — the Women’s Casual Hoodie Vest fits your needs. Enjoy how you look and feel, with a striking black/white design and beautiful silhouette that’s just loose enough for everywhere comfort. 

Crafted from 100% cotton for both the body and the lightweight hood, with a polyester-lined hood, this is not a weighted vest — but is a fashionable, versatile choice for all-day activewear. 

  • A casual wear-all-day activewear hooded vest
  • Great for hiking, running, working out, or just to be comfortable all day.
  • The two-tone (black/white) vest is made of 100% cotton
  • The lightweight hood is also 100% cotton with a polyester lining for comfort and good looks. 
  • From the gym to the café and beyond, the underhoodie’s soft fabric makes it a great casual all-day vest.
  • The fit provides a beautiful silhouette while being just loose enough for all-day comfort.
  • This is not a weighted vest.
  • Form-fitting casual fit 
  • We suggest the same size vest as your favorite casual jacket
  • For more information visit our Size Guide
Materials & Care


  • 100% cotton

Hood Lining

  • Polyethylene/Spandex blend


  • #5 Zipper


  • Flat gold drawstring with black metal aglet
  • 1/4" grommet


  • Satin printed label 

Care Instructions

  • Machine wash and dry, do not bleach
Shipping & Returns

Shipping Policy: Our goal is to have your Vest on its way within 2 business days of your order for quick delivery to your doorstep.

Returns Policy: Please contact us at Our team is ready to help process your return promptly and efficiently.

Color: White/Black Split with White/Black Split Hood
Size: XS

Embrace the mindset and create lasting change in your mind, body, and spirit.

Every Aion product is designed with your complete health and wellness in mind. We’re your guide on a transformational journey—that never-ending quest to unlock your true potential by pushing yourself physically and mentally.

One hoodie. Many moments.

Aion Product FAQs

Learn more about our products, design, and technology.

Can the women's underhoodie be worn while exercising?

It can be worn under a Performance Vest or on its own to exercise.

How does Aion give back?

For each of the first 20,000 Aion vests sold, we’ll donate $20 to a small group of nonprofits that are focused on enriching people’s minds, bodies, and spirits. That includes $10 from your purchase and $10 in matching funds from founder Brent Yates’ organization, Restore Us. 

Where can I buy Aion gear?

Aion offers products exclusively through our website. We’re building a thriving community (online and IRL) based on our shared mindset and our focus on achieving greatness.