What to Wear to [solidcore]

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[solidcore]
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September 20, 2026
3
min read

You've booked your first class (or your fiftieth) and you're staring into your closet wondering what actually works for 50 minutes of low-impact, high-intensity strength training on a custom-built reformer. 

Throughout class, you’ll move through exercises that challenge your core, upper body, and lower body, often while transitioning between different positions on the machine. That means your clothes should move with you.

Here's what you need to know about what to wear to class.

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The Short Answer: There’s no [solidcore] uniform.

Most importantly, wear something that makes you feel comfortable and confident. 

We recommend fitted, sweat-wicking basics: a supportive top (tank or sports bra), leggings or fitted shorts that hit at or below the knee, and grip socks (or bare feet). Whichever you choose, look for something that stays put when you squat, lunge, plank, and bend. 

But let's talk about why, because what you wear at [solidcore] isn't just about comfort. It affects your form and your results.

New to [solidcore]? Start here.

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Why Fit Matters More at a Reformer Class

The guiding principle is simple: wear what lets you and your coach see your body move.

[solidcore] workouts happen on the reformer, so your coach needs to see your alignment to correct your form in real time (knees, hips, shoulders, spine). Baggy clothes hide that. 

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Tops

You’ll spend parts of class standing, kneeling, planking, and moving between the carriage and platforms, so a top that stays relatively close to your body can make things easier.

  • Fitted tanks, sports bras, or close-fitting T-shirts work best.
  • Avoid anything loose or flowy, which can ride up during planks and inversions, or get caught in the carriage.
  • Racerback or strappy styles are popular, since you'll be reaching overhead and behind you often.
  • Layering is a good idea for before and after class, but plan to shed extra layers once you start sweating.

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Bottoms

You’ll want to wear something that stays in place. If you’re constantly pulling your waistband up or your shorts down during the workout, they probably aren’t your best bet.

  • Full-length or 7/8 leggings are the most popular choice. They stay put during lunges, planks, and floor work.
  • Biker shorts or fitted athletic shorts that hit at or below mid-thigh also work, especially in warmer months. Very short shorts can be uncomfortable on the carriage and during exercises where your legs slide.
  • Avoid loose shorts or joggers.
  • High-waisted styles help keep everything in place during high plank and roll-down movements.

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Grip Socks

[solidcore] classes are done without shoes, directly on the reformer platform, which means you’ll want to go barefoot or wear socks with grippy soles on the bottom. 

Regular socks are genuinely dangerous here, because you'll slide on the platform. Grip socks can also be more comfortable than bare feet on the springs and straps.

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Hair

Wear it however you like. There's no rule here, and every studio has hair ties if you forget one.

The only thing worth knowing: some exercises put your head directly on the carriage. Anything hard or bulky at the back of your head, like a claw clip, might need a quick adjustment mid-class.

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What to Skip

No hard rules here, but a few things can make class less comfortable:

  • Jewelry: Avoid rings, bracelets, and long necklaces that can get caught in the straps or scratch the machine.
  • Baggy or loose clothing.
  • Shoes: you're barefoot or in grip socks the whole time.

If you can move freely without thinking about what you're wearing, you're probably good to go.

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A Simple Formula

If you're not sure where to start, this combination works for almost everyone:

  1. Fitted tank or sports bra
  2. Full-length or 7/8 leggings
  3. Grip socks
  4. Hair pulled back, jewelry off

Ready to try it? Book your first class.

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Final Tip

Bring a small towel and water bottle. The workout is intense, and studios get warm fast once the whole class is moving. Beyond that, the best outfit is the one you forget you're wearing, so you can focus on .

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If it's your first class, our 101 beginner guide covers everything else to expect. 

Ready to book? Find a studio near you.

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See you on the carriage.

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