It's the question nearly every new cyclist quietly types into Google before their first proper ride. So here's the straight answer.
No. You don't wear underwear with bib shorts, or under any padded cycling shorts.
We know that feels wrong. A lifetime of getting dressed has trained you to reach for pants first. Cycling shorts are the one exception to that habit, and after a couple of long rides done properly, you'll understand why nobody goes back.
Why no underwear under cycling shorts?
Padded cycling shorts are built to sit directly against your skin. The pad, which cyclists call the chamois, is working the whole time you ride: it cushions your sit bones against the saddle, pulls sweat away from your skin, and cuts the friction that builds up over hours in the same position. Slide a layer of cotton underneath and you sabotage all three.
Think about what a pair of pants actually brings to the bike. Seams, for a start, sitting in the wrong places and turning into hot spots by mile twenty. Cotton that soaks up sweat and traps it against you instead of letting it move. And a spare layer of fabric that shifts and bunches every time you pedal. That rubbing is the short road to chafing and saddle sores, which is the exact thing the chamois exists to prevent.
So the rule is short. Bibs go straight on. Nothing underneath.
If you want the full story on how that pad works and why it earns so much trust, we've written a plain-English guide to what a chamois actually is.
What are bib shorts, exactly?
If the word is new to you: bib shorts are padded cycling shorts held up by built-in shoulder straps, a bit like a pair of braces, instead of an elasticated waistband.
Those straps are the entire point. They keep the shorts up without gripping your waist, so nothing digs in when you're folded over the bars for a few hours. The pad stays exactly where it should, and after ten minutes you stop noticing the shorts at all. That is about the best thing you can say about a pair.
The one mild faff is the toilet stop, and most modern designs have quietly sorted that too.
How should bib shorts fit?
Snug. Genuinely snug. Tighter than feels right while you're standing in front of the bedroom mirror.
A good pair should feel like a second skin, with no loose fabric anywhere, and least of all around the chamois. Any gap between the pad and your body and the pad can't support you, so you get movement, and movement means rubbing. The leg grippers want to hold firm without biting in or leaving deep red rings.
Here's the test. Standing up, they might feel a touch much. Drop into your riding position with your hands on the bars and everything should settle and feel like support rather than restriction. Bib shorts are cut for the shape you make on the bike, not the one you make standing at the kitchen counter.
Caught between two sizes? The size guide is linked on every product page, and on a close call the snugger size is usually the right one.
What do you wear with cycling shorts?
Up top, a cycling jersey. The close cut stops it flapping in the wind and the rear pockets carry your phone, keys and a gel or two. When it's cold, a base layer goes under the jersey, never under the shorts.
On your feet, a proper pair of cycling socks. And that's the lot for most rides: bibs, jersey, socks. No great mystery.
What you don't add is a second pair of shorts over the top, unless you simply prefer the look. Plenty of riders pull a baggy short over their bibs for gravel days or the commute, which is fine. The padded layer still goes against the skin first.
A few honest extras
Start every ride in clean shorts. Yesterday's damp pair is the single most common cause of saddle sores. Wash them after each ride.
Chamois cream earns its place on long days. A thin smear on the pad takes the friction down another notch. Worth it once you're riding past the two-hour mark.
Bin them when the pad goes flat. A chamois has a finite life. The day it stops feeling supportive, it's done its miles.
Ready to ride?
A good pair of bib shorts is the best single upgrade you can make to your comfort on the bike. Get the fit right, leave the underwear in the drawer, and long rides stop being something you grit your teeth through.
Take a look at our men's bib shorts and women's range. Every pair is built around a proper chamois and cut for real riding, on real roads, in real British weather.
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