Chafing during a run is one of those things nobody talks about loudly enough. If your thighs touch (most women's do), the wrong running shorts can turn a 5k into a painful experience.
Here's what our community actually found after testing.
Why most anti-chafe shorts fail pear and hourglass shapes
Standard running shorts are designed for a straight hip-to-thigh ratio. If your thighs are wider than your waistband would suggest, shorts ride up — no matter how good the fabric is.
The key variables are:
- Inner thigh seam placement — lower is better
- Compression lining vs. brief liner (compression wins for chafe prevention)
- Inseam length — anything under 3" is risky on a wider thigh
What the Forre community recommends
1. Gymshark Speed 5" Shorts
Best for: pear shapes, UK 10–16
Our community rating: chafe-free for thighs up to 24" circumference. The inner compression shorts built in are the key — they hold thighs apart slightly.
Watch out: the waistband sits low; if you have a longer torso the top folds inward on longer runs.
2. Lululemon Speed Up Short 4"
Best for: athletic/rectangle shapes, UK 8–14
The 4" inseam is short but the compression liner extends to 6", which is the anti-chafe part. Women with UK 14+ hips note the liner is snug. True to size.
3. Nike Tempo Running Shorts
Best for: budget pick, all shapes
Nike's Tempo has a built-in compression brief that sits lower on the thigh. Our community finds them true to size, but the outer shell rides up slightly on wider thighs — the liner holds, which is what matters.
4. Sweaty Betty Power 2-in-1 Short
Best for: hourglass and pear shapes, UK 8–18
Most anti-chafe pick in our data for women with 40"+ hips. The 2-in-1 design means no gaping, and the compression panel is generous. Size up one if between sizes.
The chafe test: what to look for
When reading any running short review, look for these signals from women with your body type:
- "Inner liner slips" = chafe risk
- "Rode up after 20 mins" = chafe risk for wider thighs
- "Stayed in place all run" = reliable
- "Compression shorts underneath" mentioned = they're wearing two layers because the shorts alone don't work
Our recommendation
For pear shapes in UK 12–16: Sweaty Betty Power 2-in-1 or Gymshark Speed 5". Both have long-enough liners and enough hip room.
For rectangle/athletic shapes in UK 8–12: Lululemon Speed Up or Nike Tempo are both solid.
Use the Forre fit quiz to see size-specific recommendations from women with your exact measurements.
