Can You Wear a Swimsuit to the Gym?

What makes a swimsuit gym-appropriate?

So you’ve decided to invest in swim-to-gym pieces – great! To ensure your swimsuit is built for more than just the water, here are some features worth looking for.

• Stay-put construction
  Think: snug waistbands, secure leg openings, and reinforced seams. These structural details are what keep a swimsuit in place while your heart rate climbs.
• Supportive fabric, not just stretchy
  Standard stretch thins under tension; supportive, high-recovery nylon snaps back to provide compression while maintaining its shape.
• Full double lining
  Double lining offers total opacity through every squat and downward dog. This means you can focus on your form, not on whether you're flashing your neighbour.
• Sweat-wicking properties
  Materials like premium recycled nylon don’t just handle chlorine and salt water; they handle your sweat in a hot yoga class, too.
• Secure strap design
  Flimsy string ties? No thanks. Cross-back, racer-back and wide-set straps stay where you put them (and actually support you while they're at it!)ires. By having two layers of premium fabric working in tandem, the swimsuit maintains its shape far longer than single-layered alternatives.

The workouts it actually works for

A thoughtfully designed swimsuit can comfortably replace traditional activewear for:

• Pilates
• Yoga
• Swimming
• Barre
• Gym circuits
• Casual cycling 

For higher-impact movement like HIIT or running, a swimsuit can still hold its own when layered with a sports bra. The swimsuit provides the coverage and lightweight compression, while the bra handles the heavy lifting.

However, not every workout is a fair fight for a swimsuit (even a well-engineered one). 

Where it falls short is in activities that demand high-intensity, purpose-built compression – think marathon training or competitive sports. Swimwear isn’t trying to compete in that arena; for those specialised demands, we always recommend wearing the dedicated gear.

Why Sheila is built for both

Sheila was designed for the messy, beautiful realities of modern life: school drop-offs, looming deadlines, fitness routines squeezed into the gaps and weekends spent drifting in and out of the water. Every design decision reflects that pace, including:

• Engineering that moves: We use high-waisted cuts, princess seams and snug waistbands specifically designed to stay in place through movement – whether that’s a deadlift or a dive into the deep end.
• Performance materials: Our luxury GRS-certified recycled nylon holds its shape through sweat, salt and chlorine, with a level of stretch recovery that keeps the fit consistent across hundreds of wears.
• Built-in sun safety: Every piece features UPF 50+ fabric, blocking 98% of UV rays across covered skin. It makes sun protection part of your outfit, giving you extra peace of mind.
• Inclusive Sizing: Our range runs from AU 6 to 24 (US 2-20) because the women asking if their swimwear can handle a workout come in every shape and size.

Ultimately, we believe you deserve swimwear that refuses to make you choose between how you look and how you move.