Sale: $ MSRP: $


Important Shipping Note: U.S. sales only.

Model Number:

As a mid-layer or on its own, the Brooks Infiniti Half Zip is an ideal-weight piece that has the reflectivity needed for short, dark winter days. A side zip pocket provides secure storage, thumbholes keep your hands warm, and a 9-inch zipper allows for temperature control. Whether out on the road or at your favorite trail, this top goes the distance.


  • Black/Nightlife (979)
  • Brite Green/Black (325)
  • Bright Orange (831)
  • Nightlife/Black (305)


  • 9" lock-down zipper with garage
  • 4"W x 5"H secure-zip left hip pocket
  • Flat-lock seams to eliminate chafing
  • Thumbholes for added warmth
  • Reflectivity for low-light visibility


  • Vapor-Dry Plus: (94% Moisture Transfer Polyester/6% Spandex) pulls moisture away from your skin, keeping you dry and comfortable

Apparel Performance Characteristics

Apparel Fit: What's this?

  • Compression
  • Fitted
  • Semi-Fitted
  • Relaxed

Temperature Range °F: What's this?

  • Cold
    • Below 30
  • Moderate
    • 30-45
    • 40-55
    • 50-65
  • Hot
    • above 65

Fabric Thickness: What's this?

  • Thin
  • Medium
  • Thick

More From Brooks Men's Sale Apparel

Customer Reviews

Comments: Great 1/2 zip, perfect for running in the winter. Nice medium weight. I agree w/ the sizing comments.  I am usually an XL in long sleeve tops, but I ordered a LG based on previous comments and it fits perfectly.
From: Chuck, IL, USA

Comments: I suggest you order a size down - I'm normally a medium for many things (shirts, jackets, etc), but the medium
size was huge on me! I've exchanged it, but besides that the material is great and it is bright enough so I'm safe running at night.
From: Andrew, Champaign, IL

Comments: While ordering this top I did a search on the internet regarding the sizing. Oboy - im glad I did a size down. I usually wear MEDIUM but this time i order SMALL after I read on the internet that people claimed it felt big.
From: Espen R., Norway

Comments: Love this top!  Very comfortable and warm but doesn't get you too warm.  Easy to pull zipper up and down while on the run and I like the little pocket on the left hip for gels.  I got a medium but probably could have gotten away with a small but the medium just gives me a little extra room.  I love the bright green and my friends say they can see me coming for miles in it.
From: Tyler, Outer Banks, NC, USA

Comments: Bought this Half Zip in November.  Unlike most running gear, this one runs true to size or even slightly large.  I'm 6'2, 220 lb and the XL is a little loose, but perfect to layer under.  The day-glo color is working well for early morning runs.  The fabric is thicker than my Nike fit-dry half zip and is perfect for colder weather.  Also like the longer sleeves with thumb holes.
From: Andy, OH, USA