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Easy returns & exchanges, 2-year warranty
Shop with confidence. If you're not completely satisfied with your purchase, you may return eligible items within 30 days of delivery for a full refund.
Once we receive and inspect your return, we'll notify you of the approval status. If approved, your refund will be automatically issued to your original payment method within 7 business days.
For complete details regarding return eligibility and exclusions, please review our Return & Refund Policy .
Every MIER-branded product is backed by a 2-Year Limited Warranty covering manufacturing defects in materials and workmanship for the original purchaser from the date of purchase.
Learn more by visiting our Warranty Information page.
Machine wash cold
Cool iron: 1 dot
Do not bleach
Do not dry clean
Do not tumble dry
Light as air and built for speed, the MIER women's running singlet is designed for peak performance on race day or everyday training. Crafted with ultra-breathable, 4-way stretch fabric and finished with bonded seams, it delivers ultralight comfort, ventilation, quick-dry comfort, and freedom of movement mile after mile.
Key Features:
Details:
The Race Vest is designed to fit close to the body to maximize the fabric's cooling effect and minimize aerodynamic drag.
Nice and very lightweight for hot weather running! It provided some cover for modesty but do note that it is as depicted, meaning you can see through it up close. Fit runs true to size.
Love the breathability!
Great fit. Perfect for running. It fits loose but not too loose. I wear it over a compression tank top. Looks exactly like pictured.
Absolutely love them. They are breathable light and do not get sweat logged
This has quickly become my go to hotday racing singlet. I live in a very hot and humid environment, so this singlet has kept me downright cool during some of the more uncomfortable running weather.

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