Stro - Earlybird Batch

Stro - Earlybird Batch

Be one of the first to pre-order Stro from our first limited production run.

Stro is made from high-grade stainless steel, chosen for strength, compact weight, and corrosion resistance. It is designed to feel solid, simple, and durable for everyday use. Wear it with the Stro sleeve for added comfort.

Each order comes with:

• 1 Stro device
  
• 2 Stro straps
  
• 2 Stro sleeves
  

Delivery is currently planned for September, though timelines may shift slightly as we finalise production.

Choosing Your Stro Size

Stro currently comes in two sizes:

• 450 g / 19.5 cm width
  
• 800 g / 23 cm width
  

The right choice depends on:

• shoulder and chest width
  
• fitness level
  
• how long you want to wear it
  
• how much resistance you prefer
  

Importantly, heavier is not necessarily better.

Stro is designed for gradual posture practice over time - not for carrying the maximum weight possible.

450 g

The 450 g version is already a noticeable amount of weight for most people.

While it may feel manageable during the first few minutes, many users may gradually notice more effort as their body adapts to wearing it over time.

The 450 g version is generally best for:

• smaller to medium frames
  
• slimmer shoulder widths
  
• longer wear sessions
  
• desk work and everyday use
  
• users newer to posture training
  

800 g

The 800 g version is designed for users who prefer a heavier feel and greater resistance.

It is generally best for:

• broader frames
  
• wider shoulders or chest width
  
• stronger upper-body endurance
  
• users who prefer shorter, more demanding sessions
  

The wider 23 cm body requires enough shoulder and chest width for comfortable wear.

Some users may prefer the heavier version because it can feel more demanding sooner.

What Stro Should Feel Like

When first putting Stro on, the weight should feel:

• manageable
  
• stable
  
• comfortable enough to wear
  

For many users, the first few minutes may feel relatively easy. The challenge can build gradually depending on your body, posture habits, fitness background, and how long you wear it.

Some users may notice effort after 10–20 minutes. Others may comfortably wear it for longer.

This will vary from person to person.

Your ideal weight depends on your own:

• body size
  
• posture habits
  
• fitness background
  
• intended use
  
• preferred level of resistance
  

Progress should be compared against your own starting point - not other users.

Quick Recommendation

Choose 450 g if you:

• want longer wear sessions
  
• prefer a more versatile option
  
• have a smaller or medium frame
  
• are new to using Stro
  

Choose 800 g if you:

• have a broader or stronger frame
  
• want greater resistance
  
• prefer shorter but more demanding sessions
  

If both sizes physically fit your frame, the choice mainly comes down to how much resistance you want and how long you plan to wear Stro.

When in doubt, choose the 450 g version.