Quick Answer: Wear to spin class: padded cycling shorts or padded leggings, a moisture-wicking fitted top, a supportive sports bra, and stiff-soled trainers (or the studio’s clip-in shoes). Avoid cotton and anything loose — loose trousers genuinely catch on the flywheel, and cotton turns into a wet rag by minute fifteen.

Your first spin class teaches you two things in fairly quick succession.

One: you can sweat from places you had no prior information about.

Two: the saddle on an indoor bike is narrow, firm, and completely uninterested in your feelings — unless you dressed for it.

The good news is the second one is a solved problem, and the solution costs about thirty dollars.

Do You Really Need Padded Shorts for Spin?

If you’re going more than a couple of times, yes. This is the single highest-impact purchase in the entire sport.

Padded cycling shorts have a chamois — a contoured pad sewn into the seat that sits between your sit bones and the saddle. On a spin bike you’re perched in roughly the same position for 45 minutes, and that pad is doing real work absorbing pressure and reducing friction.

What to look for:

• A real chamois, not just thicker fabric. Cheap “padded” shorts often just have a foam square, which bunches.
• Flat or bonded seams through the seat, since a seam right where you sit defeats the point.
• Length that suits you. Bike-short length (mid-thigh) is the standard; 3/4 padded leggings work equally well.
• Worn without underwear. This is how cycling shorts are designed to be used — underwear seams under the chamois cause exactly the chafing the pad exists to prevent.

Padded shorts beat a padded seat cover, by a distance. The cover adds squishy material that your sit bones sink through; the shorts move with you.

The Full Spin Outfit

• Padded shorts or padded leggings — the comfort MVP, covered above.
• A moisture-wicking fitted top. Polyester or nylon blends. A tank or fitted tee, not a flowing one.
• A supportive sports bra. Spin is steadier than running, but 45 minutes of standing climbs and sprints still asks for real support.
• Grippy socks and the right shoes. Most studios with clip-in pedals lend cycling shoes at no cost — just say it’s your first class. Otherwise, stiff-soled trainers. Soft running shoes let your foot flex over the pedal, which gets uncomfortable fast.
• A hair tie. Obvious until the moment you’ve forgotten one.

Myth vs Fact

Myth: Loose shorts are more comfortable on the bike. Fact: Loose fabric bunches under you and rubs, and the legs can catch on the flywheel or crank. Fitted is both more comfortable and safer.

Myth: Cotton is fine for an indoor workout. Fact: It’s the worst option in a hot studio. Cotton absorbs sweat and holds it, so it gets heavy, clings, and chafes. Every regular has one cotton-tee story.

Myth: You need cycling shoes to take a class. Fact: Studios lend them free, and cage-pedal studios take normal trainers. Buy your own only once you know you’re going regularly — then they’re worth it, since a stiff sole transfers power far better.

Myth: Saddle soreness means the bike is set up wrong. Fact: Sometimes, but for the first three or four rides it’s mostly just adaptation. If it’s still bad at ride six, revisit your saddle height and fore/aft position — and get the padded shorts.

The Little Things That Actually Matter

• Bring a towel and water. Non-negotiable. A studio with 30 bikes gets warm quickly.
• Fitted, not loose, across the board. Repeated because it’s the safety point.
• Don’t overdress. People arrive in long sleeves and regret it inside four minutes. You’ll be warm within the first interval.
• Wash kit promptly. Chamois shorts held in a damp gym bag are a skin problem waiting to happen — rinse or wash them after every ride.
• Consider chamois cream if you’re riding several times a week. Sounds excessive. Isn’t.

Why Comfort Equals Consistency

Here’s the real argument for spending thirty dollars on shorts.

Most people who quit spin don’t quit because they dislike cycling. They quit because ride one left them sore in a specific, memorable way, and ride two never got booked.

Dress for the saddle and ride one ends with an endorphin high instead of a grimace. That’s what gets you to ride two, and ride two is where the fitness actually starts.

Mini FAQ

Can you wear regular leggings to spin class?

Yes, and plenty of people do — fitted leggings are perfectly safe and comfortable for a class or two. The saddle is the issue rather than the leggings themselves, so if you’re going regularly, either switch to padded leggings or wear padded shorts underneath.

What shoes should you wear for indoor cycling?

Clip-in cycling shoes if the studio uses SPD or Delta pedals, which most lend for free. Otherwise stiff-soled trainers — cross-trainers or skate shoes work better than cushioned running shoes, since a soft sole lets your foot flex uncomfortably around the pedal.

Do you wear underwear under padded cycling shorts?

No. Cycling shorts are designed to be worn against the skin, and underwear adds seams and extra fabric right where the chamois is meant to prevent friction. It feels strange for exactly one ride, then makes complete sense.

TL;DR

• Padded shorts (or padded leggings) are the single best purchase for spin comfort.
• Wear the chamois against the skin — no underwear underneath.
• Moisture-wicking fitted top, supportive sports bra, no cotton, nothing loose.
• Stiff-soled trainers, or borrow the studio’s clip-in shoes for free.
• Towel and water every time; don’t overdress, you’ll be hot in four minutes.
• Comfort on ride one is what gets you to ride two — which is where results live.

Dress for the saddle, survive the first ride, and come back for the endorphins.