Why CustomBoxes.io Is the Perfect Partner for Your Amazon SIOC Packaging Needs

Derick Jaros -

As an Amazon seller, you're constantly looking for ways to improve margins, reduce fulfillment fees, and elevate the customer experience. One of the smartest — yet often overlooked — ways to achieve all three is through Amazon's SIOC (Ships In Own Container) initiative.

And if you're looking for a packaging partner that understands the Amazon ecosystem, offers unbeatable pricing, and prioritizes your brand — CustomBoxes.io is built for this moment.

We make it easier than ever to create custom boxes with logo for shipping that are Amazon-compliant, cost-effective, and on-brand — without the headaches of traditional custom packaging.

Here’s why we're the perfect place to get your SIOC-ready custom shipping boxes — and how we help sellers like you reduce costs, streamline operations, and scale smarter.

What Is Amazon SIOC and Why Should You Care?

Amazon’s SIOC (Ships In Own Container) program is part of its broader Frustration-Free Packaging (FFP) initiative. It enables sellers to ship products in packaging that’s certified sturdy enough to go directly to customers without additional Amazon prep or overboxing.

In other words: if your product’s packaging meets certain strength and safety standards, Amazon will ship it as-is — no extra box, no extra handling.

Why this matters:

  • Avoid extra prep fees (typically $1.99+ per unit)

  • Faster delivery & Prime eligibility

  • Lower damage and return rates

  • Better unboxing experience for customers

  • Improved sustainability metrics

But getting your packaging SIOC-ready isn’t as simple as slapping your logo on a regular box. Amazon has strict size, durability, barcode, and sustainability requirements.

That’s where CustomBoxes.io comes in — we specialize in custom boxes with logo, custom shipping boxes with logo, and even simple logo boxes that meet Amazon’s toughest packaging standards.

SIOC Packaging Is About Function and Form — We Handle Both

Most box companies make you choose: price or performance, design or durability. At CustomBoxes.io, we don’t believe in trade-offs.

Our boxes are built to withstand the rigors of Amazon’s fulfillment process while helping your brand shine on the customer’s doorstep.

Here’s how we do it:

1. Durability You Can Count On

SIOC packaging must survive drop tests, compression, and vibration — your average mailer or retail box won’t cut it. We offer:

  • ECT-rated and double-wall options to handle heavier items

  • Designs that avoid flaps or cutouts in high-stress areas

  • Expertise in shipping dimensional weight optimization

We don’t just make custom boxes — we make custom shipping boxes that protect your products and your profits.

2. Sustainable Kraft Materials That Align with Amazon Goals

Amazon favors packaging that aligns with its Climate Pledge Friendly goals. Our boxes are:

  • Made from 100% recycled kraft corrugate

  • Printed with black soy-based ink (no bleaches, no color ink waste)

  • Fully recyclable and curbside-friendly

This makes it easier for your brand to meet Amazon’s sustainability preferences — and look good doing it with your logo shipping boxes.

3. Brand-First Designs That Convert

When your product ships without an outer Amazon box, your packaging is the first — and only — branded experience the customer sees.

We help you make it count.

  • Print your branding, ingredients, or product info directly on the exterior

  • Add clean, professional artwork for elevated perception

  • Use our affordable “Do It For Me” service to create custom boxes with logo for shipping that are ready to impress

You no longer need to choose between branding and budget. You can have both — beautifully designed custom boxes with logo that also pass Amazon’s standards.

How CustomBoxes.io Makes SIOC Easy for Sellers

We understand that most Amazon sellers:

  • Don’t have time to become packaging experts

  • Don’t want to deal with third-party testing labs

  • Just want a simple solution that works

We built our process to reflect that — whether you need custom shipping boxes with logo or simple logo boxes, we’ve got you covered.

DIY, DIWM, or DIFM Options

You can choose how hands-on you want to be:

  • DIY: Upload your design and get boxes shipped fast

  • DIWM (“Do It With Me”): Add $49 at checkout to get guided assistance

  • DIFM (“Do It For Me”): We handle artwork, structure, optimization, and messaging for $99

ISTA-6A Ready Designs

If you need to get ISTA-6A certified (Amazon’s standard for SIOC), we’ll help you:

  • Choose a structure that’s most likely to pass

  • Connect with a certified testing lab if needed

  • Make small tweaks to reduce the risk of failing (e.g., thickness, closure strength, weight distribution)

Whether you’re shipping supplements, pet products, or home goods, we’ll help you create the right custom boxes with logo for shipping — fast.

Low Minimums, Fast Turnaround

We know not every seller needs 10,000 boxes. Whether you're testing a new product or scaling an ASIN, we offer:

  • Low minimum order quantities

  • Fast production timelines

  • Warehousing and split-shipment options (coming soon)

Real Cost Savings You Can Quantify

Sellers working with us have saved thousands by avoiding dimensional weight upcharges, oversized box penalties, and Amazon prep fees.

Take this common scenario:

A seller previously used a 14x14x14 box for a pet product, getting hit with oversize fees and $1.99 per unit prep charges.

We helped them switch to five 30x30x6 custom shipping boxes that were SIOC-ready — eliminating prep fees and cutting total shipping cost by 30%.

We solve problems by blending smart design with shipping science — all in affordable, branded shipping boxes with logo.

Built for Amazon Sellers and eCommerce Brands

Many traditional packaging companies cater to massive retail brands, require huge minimums, and move slow.

We built CustomBoxes.io specifically for:

  • Amazon and Shopify sellers

  • eCommerce operators with lean teams

  • Businesses who want affordable, custom boxes with logo that don’t waste time or money

Ready to SIOC-ify Your Packaging?

If you’re an Amazon seller trying to:

  • Reduce FBA fees

  • Avoid prep charges

  • Create a branded unboxing experience

  • Ship faster and greener

  • Future-proof your fulfillment strategy
    …then SIOC-ready custom shipping boxes with logo are a no-brainer.

And CustomBoxes.io is your unfair advantage.

Start Today

Get a quote in minutes, or add premium assistance to get expert help on structure, certification, and messaging.

We’re here to help you sell more, ship smarter, and stand out — one custom box at a time.

👉 Get Started Now at CustomBoxes.io