Quick answer

For the best fit, choose your normal t-shirt size if you want a relaxed feel, or size down one for a closer, race-cut fit. Measure your chest and waist to confirm against the FOX size chart.

Why sizing matters for a trail jersey

A jersey that’s too loose can flap in the wind and catch on branches, while one that’s too tight restricts movement and traps heat. The Hightail SS Jersey uses a new breathable mesh fabric, so the right size ensures the ventilation works as intended.

The jersey is designed for enduro and trail riding, meaning it balances a slightly relaxed fit with enough structure to stay in place under a pack. Consider how you layer it: if you wear a base layer or armor underneath, you may want to stay true to size.

How to choose your size

  • Measure your chest: Wrap a tape measure around the fullest part of your chest, keeping it level. Compare this number to FOX’s chest range for each size. If you’re between sizes, size up for a looser fit or down for a snugger one. Chest measurement is the primary sizing factor.
  • Check your waist and length: The Hightail SS Jersey has a slightly dropped tail for coverage when leaning forward. Measure your natural waist and compare it to the size chart. The jersey should cover your waistband without being baggy. A longer tail helps keep your lower back covered on the bike.
  • Consider your riding style: If you prefer a loose, casual feel for cross-country or hot days, choose your usual t-shirt size. If you want a closer fit for aggressive trail riding or to reduce flapping, size down one. Ride style and personal preference matter as much as measurements.

Product details

  • Hightail SS Jersey: Features flatlock stitching and shoulder yoke patterning to reduce pressure points, even with a pack. This means the jersey won’t rub or bunch under your backpack straps, so getting the right size helps you actually feel that benefit.

    Hightail SS Jersey

    Hightail SS Jersey

Who this jersey fits best

Ideal for

  • Riders who want a breathable, trail-focused jersey that works with a pack
  • Riders who prefer a relaxed to moderate fit without being oversized

Not ideal for

  • Riders who need a race-tight, aerodynamic fit (consider sizing down)
  • Riders who want an ultra-baggy, loose jersey (size up one)