ULTRASPIRE Astral 4.0 Race Vest - Women's

Sale price$168.00 CAD

The Astral 4.0 is the newest iteration of our female specific vest which features our patented HerFit Harness. The HerFit Harness is a securing strap system designed specifically to fit women. The straps allow for chest, heart, and lungs to be free with no restriction to the open air. This pack’s minimized contact ensures that you will not chafe. The Astral 4.0 has been upgraded with our UltrAcool Light Mesh which provides a very breathable and lightweight feel and increased pack durability. It has been lined with a soft perimeter binding to ensure any contact with the body is comfortable over the long haul. A new shoulder pocket capable of carrying any size cell phone has been added. A sweat-proof pocket has also been added for those items you want to keep dry. For an even better fit, the Astral 4.0 features a Max02 System side compression adjustment which helps stabilize the pack empty or fully loaded and provides a more fitted feel with less heat retention. The main compartment of this vest now feature an expandable mesh which has increased the capacity to 9 liters for the endeavors that require more gear and can be secured down with string compression keeping the pack stable. 2 liter reservoir included.


Recommended Use:

Comfortable and flexible to fit varied women’s shapes; for daily road training to ultra racing.


  • Silicone and PU coated feather-weight nylon fabrics resist water, abrasion and tears.
  • Lightweight, soft, breathable, but strong, large-holed mesh pulls moisture away from the body to keep skin dry and cool.
  • Plush feeling micro-fiber polyester edges, soft and non-abrasive against skin and clothing.
  • Sweat proof webbing—won’t absorb water or get saturated and heavy.
  • Safety stitched bar tack on all stress points.
  • Quiet, bounce free, easy to see and use, zipper pulls.
  • Zig zagged stitching over elastic for ultra-durability, increased stretch and rebound.
  • Simple, fast, easy in and out bladder attachment.
  • UltrAcool Light Mesh
  • Max 02 System™ for unrestricted breathing while maintaining a stable pack. Uses shock cord with good stretch for unrestricted breathing but also good rebound on the stretch for a stable ride.

Additional information

Fit: Universal
Size(s): Universal (Chest Size: 26″-50″)
Color: Mint Chip
Hydration Compatible: 2L bladder
Capacity: 549 c.i. (9L)
Weight: 13.6 oz (386 g) with reservoir, 8.8 oz (249 g) without reservoir
Dimensions: 8 × 5 × 2 in

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