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Model Number:

The New Balance Boylston Split Short is an elite level short ready to take you the distance in your next race. With a high mobility split, perforations just below the waistband for added breathability and a zip pocket for storage, you'll be set to run away from your competition.


  • Black (BK)



  • Approx. 3" inseam, 11.5" outseam (size medium)
  • Soft, elastic waistband with internal drawcord
  • Featherweight internal mesh brief
  • Perforations along back just below waistband for added breathability
  • Back right hip zip pocket to stow essentials (approx. 3.5" zipper, 3"W x 4"H)
  • Internal envelope key pocket (approx. 2.5"W x 3.5"H) 
  • Side split for optimal range of motion
  • Reflective New Balance branding


  • Main Body, Plain weave (86% Polyester, 14% Spandex), a lightweight, stretch fabric with quick-drying properties
  • Lining, Jersey  (100% Polyester), a featherweight material that drys quickly

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

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