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Turn the heat into more sweat, right at your belly

The silver lining in the high waistband traps your body heat as you move, so you sweat more around your tummy. The high-waist fit smooths your stomach under clothes and stays put all day.
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Will this help me lose weight?

Yes, it helps you sweat more during your workouts or daily activities, which can lead to weight loss and a higher calorie burn.

For long-term fat loss, it's best paired with regular movement and a healthy diet.

How does it work?

It traps heat close to your body to create a sauna-like feel while you move, helping you sweat faster than normal and helps you burn more calories during any activity.

Will it feel too hot / uncomfortable?

It’s lightweight and flexible. Start with 10–15 minutes, hydrate, and take breaks as needed, especially if you’re new to sauna wear.

What size should I get?

Check our size guide based on your height and weight.

If you’re between sizes or prefer a looser fit, choose the bigger one.

What if the fit isn’t right?

No problem! If it doesn’t fit how you like, just contact us within 7 days and we’ll help you with a size exchange, fast and easy.

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Say hello sa mas mainit, mas pawis, mas sulit na workout

Time to Say GOODBYE to ...

  • Workout na halos walang pawis
  • Slimming coffee at tea na walang epekto
  • Murang sauna shorts na napupunit agad
  • Shorts na nagkikiskis ang hita mo
  • Diet na hindi naman tumatagal
SHOP NOW & SAVE UP TO 60%

Sauna-Effect Heat

The silver lining traps your body heat as you move.

Maximum Sweat

Sweat more per session, same effort.

Full-Thigh Coverage

Covers your whole thigh so nothing rubs.

Invisible Fit

Flat seams stay hidden under any outfit.

Mas pawis, mas intense, mas sulit ang bawat workout

Sauna-Effect Heat

Pinapainit ng silver lining ang katawan mo para sobrang pawis habang nagwo-workout.

More Sweat, Same Effort

Ginagawang mas intense ang kahit simpleng workout — walang dagdag na oras o pagod.

Smooth & No-Chafe Fit

Compression para instant smooth sa ilalim ng damit, at takip ang buong hita para hindi nagkikiskis.

SHOP NOW

Why the FitShift Sauna Shorts

See how it compares to what most people try first.

FITSHIFT SAUNA SHORTS CHEAP SAUNA SHORTS NORMAL WORKOUT SHORTS
Sauna-effect heat retention
Sweat-boosting inner lining
Smooths under clothes Varies
4-way stretch fabric
Full-thigh coverage Varies
Machine washable Varies

SWEAT STORIES FROM REAL USERS

Watch them move, feel the heat, and share their first impressions.

No hype, here's exactly what sauna shorts do.

Let's be honest: no garment melts thigh fat on its own, and anyone who promises that isn't telling you the truth. Here's what FitShift actually does. The heat-reflective silver lining traps your body heat as you move, so you sweat more around your hips and thighs with the same effort. The compression gives you an instant smoother line under your clothes. And the full-thigh cut keeps your skin from rubbing all day.

The lower body is the hardest place to feel progress, which is exactly why a realistic tool beats another slimming tea. Wear them while you work out, walk, or power through a busy day, and let the sweat work with your movement.

HOW TO GET FIT IN 15 MINUTES AND ACTUALLY STICK WITH IT

Free eBook Offer

Discover the secrets with our exclusive eBook, absolutely free with every order!

HOW TO GET FIT IN 15 MINUTES AND ACTUALLY STICK WITH IT
FREE with every purchase
  • 15-Minute Daily Workouts
  • Simple, Repeatable Routines
  • No Gym Required
  • Easy to Stay Consistent
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FREQUENTLY ASKED QUESTION

✨ What is the silver part?

It's a heat-reflective lining on the inside of the shorts. The outside is all black. You only see the silver if you turn the waistband inside out. Worn normally, they look like plain black shorts.

⏱️ How long should I wear them?

About 30 to 60 minutes while you're active is enough. Drink water before and after, and take them off if you feel too hot.

👖 Can I wear them under my clothes?

Yes. The seams are flat and the fabric is smooth, so they stay hidden under jeans, leggings, or a uniform.

📅 Can I wear them every day, not just for workouts?

Yes. Many people wear them for chores, errands, or a full work shift. You sweat more whenever you move, and they smooth your shape under any outfit.

🌡️ Aren't they too hot for Philippine weather?

They're meant to warm you up, that's how they boost your sweat. The inside is still breathable, and you control it by how long you wear them. Start with shorter sessions and drink water

🩹 Will they cause a rash or skin irritation?

The lining is breathable to lower that risk, but everyone's skin is different. Keep sessions to 30–60 minutes, dry off after, and don't wear them all day every day. Stop if your skin reacts.

🩳 Do they roll down or ride up?

No. The waistband and hem grip lightly so they stay in place while you move.

👃 Will they smell like rubber?

No. Air them out after each use and wash them as directed, and they won't hold odor.

🧼 How do I wash them?

Hand wash, or machine wash on gentle with cold water, then air dry. Don't use a dryer or iron, since heat can damage the lining.

🧵 What are they made of?

A stretchy, heat-trapping fabric with a silver reflective lining on the inside. It has 4-way stretch, so it moves with you.

💵 Is it cash on delivery (COD)?

Yes. You can pay in cash when the package arrives at your door, nationwide. You only pay once it's in your hands.

↩️ What if it doesn't fit or I'm not happy?

You're covered by our 30-day money-back guarantee. If the size is wrong or you're not satisfied, message us and we'll help with a return or exchange.

✅ Is this a legit seller?

Yes. We're a registered Philippine seller, we offer COD so you pay only on delivery, and you can message us anytime before or after you order.