The short answer: a snug box for rigid items, padded envelope for flexible items
To ship via Wallapop or Vinted, choose a cardboard box that leaves enough space to protect the item without allowing it to move. Reserve padded envelopes for clothes, thin books, and flexible items that won't deform. Shoes, cosmetics, toys, electronics, and any fragile product travel better inside a box. If you're unsure between the two formats, consult the comparison of cardboard boxes versus shipping envelopes for online deliveries.
There is no single valid box for all shipments. The platform may suggest a size, but you must measure the closed package and check the carrier's limits before confirming the sale. A box that is too large increases shipping costs and requires more filler; one that is too small transmits every bump directly to the product.
Quick chart: what packaging to use depending on what you're selling
| Item | Recommended packaging | Approximate size | Internal protection |
|---|---|---|---|
| T-shirt or thin garment | Padded envelope or shallow box | Up to 30x23x10 cm | Inner bag for moisture protection |
| Book | Book mailer or padded envelope | 28x23x5 cm | Flat cardboard on covers if valuable |
| Shoes | Self-assembling mailing box | 34.5x21x12.5 cm | Paper to prevent collision |
| Cosmetics or small toy | Flap box | 20x15x15 or 30x20x10 cm | Foam, paper or bubble wrap on all sides |
| Mobile phone | Small sturdy box | 16x10x5 cm or larger | Several layers of protection and zero movement |
| Laptop or console | Sturdy box, preferably double-walled | According to the already protected device | Foam and total separation from cardboard |
| Lot of several items | A single box | The smallest that fits all protected items | Each piece wrapped and separated |
In the shipping boxes collection, you can compare postal, self-assembling, and flap box formats. For small items, filter directly for small and medium boxes.
What Wallapop requires for package preparation
The official Wallapop guide makes the seller responsible for preparing adequate packaging. It asks for an outer box that matches the item's measurements, a flat surface for the label, and wide tape. In its June 2026 update, it also establishes a minimum base of 21x15 cm for the box and allows envelopes for flexible or less delicate products, such as clothes or books, as long as they are well sealed and protected.
Wallapop recommends immobilizing the contents and performing a simple test: lift and gently shake the package. If you notice movement, more filler is needed. For a lot sale, all items must travel within a single package associated with the shipping code.
What to check on Vinted
Vinted's official instructions also require sturdy outer packaging, adjusted to the item, with empty spaces filled and a legible label on the flattest side. The platform warns that incorrect packaging may affect the right to a refund or compensation if the shipment is damaged.
The measurements depend on the selected shipping company. For Vinted Go, the dimensions published when reviewing this guide were:
- XS: 38x17.5x8 cm, up to 15 kg.
- S: 38x30x8 cm, up to 15 kg.
- M: 38x30x18 cm, up to 15 kg.
Vinted adds a specific condition for Vinted Go: it requests small, flexible packaging and advises against boxes due to the limited space in the lockers. If your item requires a rigid box to travel protected, check if this shipping method is suitable before confirming the sale. Do not sacrifice protection to force a package into an incompatible modality.
These are specific limits for Vinted Go, not a universal rule for all carriers. Always measure the final package and check the limit shown in the transaction before taking it to the drop-off point. To separate the cost of packaging from shipping, also review the guide on how much it costs to send a package in Spain.
How to choose the right size without paying for air
Measure the item in its shipping position: folded if it's clothing, disassembled if possible, and with all its accessories together. Then add the space the protection will occupy.
- Non-fragile item: add between 1 and 2 cm for each dimension.
- Fragile item: provide continuous protection on all sides and avoid any direct contact with the cardboard.
- Multiple items: add separators so they don't hit each other.
- Electronics: measure the device already wrapped; not the bare device.
For example, a shoe box measuring 31x19x11 cm should not be forced into an identical box. A 34.5x21x12.5 cm self-assembling mailing box can be used for footwear without the original box; if you keep the original packaging, you will need a larger outer format.
How to pack each category
Clothing
Fold the garment, place it in a clean bag, and expel the air before sealing. For a single T-shirt, a padded envelope may suffice. For jackets, batches, or clothes you don't want to compress, use a shallow box. Avoid shopping bags or paper envelopes without moisture protection.
For clothes and flat electronics, the 43x35x7 mailing box.
Shoes
Protect each shoe and place paper between them. If you keep the original box, use it as inner packaging and place it inside an outer box: the brand's box is not designed to withstand impacts, rain, and conveyor belts.
Books
An individual book fits in a 28x23x5 cm book mailer. Protect the corners and prevent the cover from sticking directly to the tape. For multiple books, use a small box: filling a large box with books creates a package that is difficult to handle and increases the risk of the bottom breaking.
Cosmetics, toys, and fragile items
Wrap each piece, create a cushioning base, and fill all gaps. The contents should be separated from the walls. Find foam, paper, and other options in filler and protection.
Electronics
Turn off the device and check the restrictions applicable to its battery. Wrap the device on all sides and use a sturdy box. Damaged, swollen, or leaking batteries should not be shipped. Vinted recommends double or triple layers for electronic devices with batteries and that the device should never be in direct contact with the cardboard.
Sealing and labeling
Seal flap boxes with packaging tape, not stationery tape. H-sealing covers the central seam and both ends. You can calculate the necessary meters in our guide on how much tape each moving box needs.
Remove old labels and codes. Place the new label on the largest, flat side, without folding it over an edge and without covering the barcode with creases. A roll of 48 mm clear packing tape allows you to seal the package and secure the edges of the label without obscuring its data.
Checklist before delivering the package
- The item matches the sale and includes all its accessories.
- The box is not damp, deformed, or weakened.
- The contents do not directly touch the walls if fragile.
- When gently shaken, no movement or sound is detected.
- The box is sealed with strong packing tape.
- The label is flat, visible, and without old codes around it.
- The weight and measurements comply with the operation's limit.
- You have photographed the item, the internal protection, and the sealed package.
Complete the packaging according to the product
If you still have doubts about the dimensions, consult the table of box sizes for mobile phones, books, clothes, shoes, laptops, and consoles. For higher value sales, also apply the protocol of photos and controls to avoid claims for insufficient packaging. If you prepare orders regularly, calculate separately how much it actually costs to pack each shipment.
Frequently asked questions
Can I send by Wallapop in an envelope?
Yes, Wallapop accepts envelopes for flexible products or those that are not easily damaged, such as clothes or books, provided they are well sealed and preferably waterproof and padded. For rigid, fragile, or electronic items, use a box.
Can I reuse a box?
Yes, if it retains its rigidity, is clean, and fits the product. Remove all old labels and barcodes. Do not reuse a damp, crushed, or open-cornered box.
What happens if the package is larger than indicated?
The carrier may reject it or apply a surcharge. On Vinted, the size and shipping company cannot be changed after the buyer completes the purchase, so it is advisable to measure before confirming.
How much internal protection do I need?
Enough so that the item does not touch the cardboard and does not move when the box is gently shaken. There is no universal figure: it depends on the weight, fragility, and shape of the product.
Should I take photos of the packaging?
Yes. Vinted recommends photographing the inside and outside of the package, and these images can speed up the resolution of an incident. Add a photo of the product, another of the protection, and another of the sealed package with its label.
In summary
For Wallapop or Vinted, buy the smallest box in which the item fits already protected and without movement. Use padded envelopes only for flexible products; a sturdy box for everything rigid, fragile, or electronic. At TeleCajas, you can combine shipping boxes, mailing envelopes, protection, and tape without having to improvise on the day of the sale.
Sources reviewed on August 9, 2026: official Wallapop and Vinted packaging and size guides. Always check the conditions shown in your transaction and by the chosen carrier, as they may change.
