If your product rattles inside its box, it needs a fitted insert cut to its exact shape. The right material depends on the product. EVA foam gives the most protection and the most premium feel for fragile or high-value items. Paper card inserts are the most recyclable and work for light products. Molded pulp suits eco-focused brands with sturdier items. PE foam is a low-cost option for shipping protection.
This guide is written by PackPro (packpropkg.com), a factory-direct packaging manufacturer in Dongguan, China, making rigid, magnetic and collapsible boxes with custom inserts for beauty, electronics and jewelry brands.
Signs your box needs a better insert
- You can hear or feel the product move when you shake the box
- Bottles or jars arrive with scuffed labels or cracked caps
- Customers open the box and the product has slid into a corner
- Kits arrive with items mixed up or out of place
- Returns mention “arrived damaged” even though the outer box looked fine
Insert materials compared
| Material | Protection | Look & feel | Recyclability | Relative cost | Best for |
|---|---|---|---|---|---|
| EVA foam | Excellent | Premium, precise cut-outs, can be flocked | Low | Higher | Electronics, glass bottles, jewelry, luxury sets |
| Paper / card insert | Good for light items | Clean, can be printed and wrapped | High | Low–medium | Cosmetics, candles, apparel accessories |
| Molded pulp | Good | Natural, textured, eco look | High (often compostable) | Medium (tooling needed) | Eco brands, electronics, sturdy items |
| PE foam | Good | Functional, less premium | Low | Low | Shipping protection, heavier items |
| Wrapped greyboard tray | Good | Very premium, matches box wrap | Medium–high | Medium | Luxury gift sets, multi-item kits |
How to choose: four questions
- How fragile is the product? Glass, electronics and ceramics need EVA, PE foam or molded pulp. Solid items can use card.
- How heavy is it? Heavier products need denser foam or reinforced trays.
- Is sustainability a selling point or a legal requirement? Paper and molded pulp are easier to recycle. EU brands should consider PPWR requirements (the official text is Regulation (EU) 2025/40).
- What should the unboxing feel like? EVA with flocking or a wrapped tray feels luxury. Card feels clean and minimal.
Insert recommendations by industry
| Industry | Typical recommendation |
|---|---|
| Skincare / fragrance | EVA or wrapped card tray holding each bottle |
| Electronics / 3C accessories | EVA or molded pulp with cable compartments |
| Jewelry | Flocked EVA or velvet-covered card with slots |
| Candles | Card insert or molded pulp collar |
| Food & chocolate | Food-safe card or plastic tray inside |
| Gift sets / kits | Wrapped greyboard tray with multiple cut-outs |
Getting the fit right
- Send the actual product, not just dimensions. Caps, pumps and curves matter.
- Leave a 1–2 mm tolerance so the product comes out easily but doesn’t move.
- Add a finger notch or ribbon pull for products that sit deep.
- Test with a sample by shaking it, dropping it from waist height, and opening it like a customer.
A good insert also lets you shrink the outer box, which cuts freight and empty space. See 5 ways to cut packaging shipping costs.
Do inserts work with collapsible boxes?
Yes. Card and EVA inserts are packed flat or nested alongside collapsible rigid boxes, so you keep the freight saving and still get a precise product fit.
How PackPro builds inserts
- Inserts engineered from your actual product, not just a drawing
- EVA, flocked EVA, card, wrapped tray, PE foam and molded pulp options
- Sample fit-tested before bulk production
- Inserts designed to fit both rigid and collapsible boxes
- FSC-certified paper options for card inserts
See how we approach electronics and beauty packaging.
Product moving around in its box?
Send product photos and dimensions. We’ll recommend the insert material and quote a fitted solution.
FAQ
What is the best packaging insert for fragile products?
EVA foam gives the strongest protection and most precise fit for fragile or high-value products like glass bottles and electronics. Molded pulp is a more sustainable alternative for sturdier items.
Are paper packaging inserts strong enough?
For light products such as cosmetics, candles and accessories, yes. Heavy or fragile items usually need EVA foam, molded pulp or a reinforced greyboard tray.
What is the most eco-friendly packaging insert?
Paper card and molded pulp inserts are the most recyclable, and molded pulp is often compostable. EVA and PE foam are harder to recycle.
How tight should a packaging insert be?
Usually 1–2 mm tolerance around the product: tight enough that it doesn’t move, loose enough that it comes out easily. Always test on a sample.