Why Women's Running Tights and Shorts Don't Fit — And the Brands Solving It

If you’ve ever ordered a pair of running tights that fit your waist perfectly but crushed your thighs, or pulled on a pair of shorts that gapped at the back every time you leant forward, you’re in very good company. Finding running bottoms that genuinely fit a woman’s body is, frankly, one of the most frustrating experiences in sport. And it’s not your body that’s the problem — it’s the way so many brands still approach sizing.

Let’s talk about why this happens, what good sizing actually looks like, and which brands are getting it right.

Why Women’s Running Gear Sizing Falls Short

The core issue is one that women across sport have been raising for years: too many brands design women’s kit by simply scaling down menswear patterns, or by working from a single “standard” female body shape that doesn’t reflect the enormous natural variation in how women are built.

Running bottoms, in particular, expose every flaw in this approach. A waistband that works for one hip-to-waist ratio will dig in or sag for another. Inseam lengths that suit one height leave another woman either flashing more than she intended or tripping over excess fabric. And then there’s the question of compression — too much in the wrong place, and you’re uncomfortable; too little, and nothing stays where it should during a tempo run.

Add to that the fact that sizing varies so dramatically between brands that your usual size can range from a small to a large depending on who made the kit, and it becomes a genuine barrier to participation. Nobody wants to dread getting dressed for a run.

What Makes a Running Tight Actually Work for Women

A well-designed running tight does several things simultaneously: it stays up without a drawstring digging in, it moves with your stride rather than against it, it doesn’t roll down at the waist when you push the pace, and it doesn’t become see-through when you bend over at the start line. (We shouldn’t have to say that last one, but here we are.)

The best tights also account for the fact that women’s hips, thighs and glutes carry more muscle and fat distribution than a scaled-down men’s pattern allows for. That means wider hip-to-waist ratios, thoughtful seam placement that doesn’t chafe on longer runs, and fabric that has genuine four-way stretch.

If you’re curious about what this looks like in practice, our review of the best running leggings for women from Bimble & Bolt is a great place to start. Their Midnight Super Strider Full Length Tights are designed specifically with women’s proportions in mind — and the difference is noticeable from the first wear.

The Shorts Problem: Even Trickier Than Tights

Running shorts present their own unique sizing headaches. The liner, the split, the length, the waistband — every detail either works in harmony with your body or fights it every step of the way.

Longer inseams have become more popular as women have pushed back against shorts that ride up mid-stride, but even here, brands don’t always get the balance right between coverage and freedom of movement. And the waistband-to-hip ratio problem rears its head again: a waistband that lies flat on a size 10 mannequin may curl or roll on a real woman with a more pronounced hip curve.

Bimble & Bolt have approached this thoughtfully in their Super Strider shorts range. We’ve reviewed both the Bimble Black Super Strider Shorts (size 8) and the Bimble Black Super Strider Shorts with the 10 front seam — and what stands out is the deliberate attention to how the shorts sit and move across different body shapes. The seam placement is considered, the waistband stays put, and the fabric has the kind of stretch that doesn’t compromise structure.

How Brands Can Do Better — and Some Already Are

The brands getting sizing right share a few things in common. They test on a range of real bodies, not just fit models of one shape. They offer detailed measurement guides rather than vague S/M/L labels alone. They’re transparent about cut — is this tight through the hip? Does this waistband run small? — so that women can make informed choices before buying.

Some brands are also recognising that running kit sits alongside the rest of your kit ecosystem, and that comfort from head to toe matters. The likes of Runderwear’s Women’s Running Briefs are specifically engineered to work seamlessly under running tights — no VPL, no riding up, no seams in the wrong places — which removes one more layer of friction from getting out the door.

Practical Tips for Finding Your Best Fit Right Now

While the industry catches up, here are a few things that genuinely help:

• Measure yourself, not your wardrobe. Your waist, hips and inseam measurements are far more useful than the size on your current kit.
• Read reviews written by women, for women. Look for reviewers who describe their measurements and body shape, not just their usual size.
• Pay attention to fabric composition. A higher percentage of elastane generally means better stretch and recovery — useful if you’re between sizes.
• Don’t ignore the waistband depth. A wider waistband distributes pressure more evenly, which is particularly helpful if you find waistbands roll or dig in.
• Try different inseam lengths. Many women find a 5” or 7” short works better for running than the 3” style that still dominates many ranges.

The Right Kit Makes Running More Enjoyable — Full Stop

Finding running tights and shorts that genuinely fit isn’t a vanity issue — it’s a performance and comfort issue. When your kit works with your body, you spend less mental energy managing it and more energy actually running. You push harder, you go further, and honestly, you enjoy it more.

The good news is that brands like Bimble & Bolt are proof that women’s-specific thinking in design and sizing is entirely possible. As more brands follow suit and more women demand better, the options are only going to improve. In the meantime, do your research, trust the reviews, and remember: the right kit is out there.