What's included
- One PrimeBuild™ Women's Open-Back Performance Tank in Grey, size Large
- The sports bra and leggings shown in the photos are not included
Training wear
Free US shipping
This item ships free to the US. Estimated delivery: 7–8 business days after you order (1–2 business days to prepare plus transit). Every order includes tracking. Shipping policy
We accept returns for defective, damaged or incorrect items. Report the issue within 48 hours of delivery with clear photos of the item and packaging to primebuildfit@gmail.com. Change-of-mind returns are not accepted. Approved refunds are issued to your original payment method within 10 business days. Returns policy
Dressed for the work Training wear
Open-Back Performance Tank
Relaxed drape with a keyhole for airflow
$39.99
Open-Back Performance Tank, Open keyhole back, Soft, light knit, Relaxed sleeveless cut, Flatlock seams, Curved hem
Open-Back Performance Tank
The PrimeBuild™ Women's Open-Back Performance Tank is a relaxed, lightweight sleeveless training top for women's gym, yoga and running workouts, with an open keyhole back, a soft slub-textured polyester knit and flatlock stitching.This relaxed, lightweight training top has an open keyhole back that lets air in where you heat up most. It drapes off the body instead of clinging, so it stays comfortable from warm-up to cool-down. Wear it over a sports bra for training, yoga or everyday errands, and let the open back show it off.
Why it works
a cut-out at the back lets air in and shows off your sports bra.
a slub-textured polyester knit that feels easy on the skin.
wide armholes give you room for overhead work and stretching.
the stitching lies flat against the body.
a clean, rounded finish that sits well over leggings.
a loose fit that hangs off the body from warm-up to cool-down.
Open-Back Performance Tank
Open-Back Performance Tank
This tank is currently offered in one size, Large, in grey. It has a relaxed, loose sleeveless fit that drapes off the body. Please check the size and fit details above before you order, because returns for change of mind or sizing preference are not accepted.
It is made of polyester, per the care label, in a light, slub-textured knit with flatlock stitching.
No. This listing is for the tank only. It is designed to be worn over a sports bra, and the open keyhole back lets your sports bra show.
Shipping is free on every order to US addresses, with no minimum. Orders are handed to the carrier within 1-2 business days after payment, and every order ships with tracking. The estimated delivery time for this tank is about 7-8 business days in total, including processing. We ship to US addresses only.
We accept claims only for items that arrive defective, damaged or incorrect. Email primebuildfit@gmail.com within 48 hours of delivery with your order number and photos of the item. The resolution is a replacement or a refund to your original payment method, usually without you needing to send the item back. Returns for change of mind or sizing preference are not accepted.
Machine wash cold with similar colors and hang to dry. Skip fabric softener to keep the fabric light and breathable.
Premium gear. Honest specs. Built for your performance.
This item ships free to the US from our supplier partners, with tracking.
Pay with the methods you trust, protected by Shopify.
Reach our team any time from the contact page.
Give a friend 10% off
They save 10% on their first PrimeBuild order.