How can we help?

We don't require minimum quantities, you can order just 1 unit of all our products.

Yes, and they're applied automatically at checkout: −10% from 8 units, −20% from 20 units, and −26% from 30 units.

All units of the same item count, even in different sizes and colors.

The final price is calculated based on the blank model chosen (e.g. Regular T-shirt vs Oversize Hoodie), the technique used (DTF or Embroidery), and the number of customization spots (e.g. front, back).

Yes! You can add different sizes and colors of items to the cart with the same design.

For your convenience, we accept payments via MB Way, Multibanco Reference, Credit Cards, Apple Pay, Google Pay, Klarna and PayPal.

We work exclusively with Embroidery and DTF Printing (high durability and soft feel). We don't use screen printing or DTG printing.

Important: some items only allow one type of customization.

In the customizer you upload PNG, JPG, WEBP, SVG, PDF, or AI, up to 20 MB.

For the best print quality, use a vector file (SVG, PDF, or AI) or a PNG with a transparent background at 300 DPI, so the print doesn't come out pixelated.

If your file is in another format (EPS or PSD, for example) or exceeds 20 MB, complete your order on the site with a simple PNG and send us the original at geral@matterstu.com, with your order number.

Yes. If your file has a background (for example, a logo inside a white square), that background will be printed on the fabric.

To make sure only your design gets printed, the file needs to have a transparent background (PNG or Vector).

Embroidery goes up to 20 × 20 cm on apparel (10 × 8 cm on caps and 10 × 6 cm on the pouch) and allows up to 6 solid colors: it can't do gradients, shadows, or photos.

To ensure legibility, text shouldn't be smaller than 6 mm in height, and isolated lines should have a minimum thickness of 3 to 4 mm (thinner lines may "break" on the fabric).

Each embroidered design has a one-time digitizing fee (the embroidery pattern), paid once, no matter the quantity. If you're repeating a design we've already embroidered on a previous order, let us know in the order notes and you won't be charged for it again.

DTF technology lets you print an unlimited range of colors. You can use gradients, shadows, and high-definition photos.

Unlike embroidery, there's no color limit or extra cost per additional color.

There may be a slight variation of 5-10% due to monitor calibration and ink absorption on the actual fabric.

During the process on the site you'll have a realistic digital preview.

After you place your order, our team reviews every file. If we notice the design is too detailed for embroidery or too low quality for printing, we'll reach out to you before moving forward with production.

No, not if you save it to your account: in the customizer, tap Save design for later and you'll find the design under the Designs section of My Account, ready to reorder.

Order files stay with us for about six months. If more time than that has passed and you didn't save the design, just send us the file again.

No. To guarantee the maximum quality and durability that defines us, we only customize our premium blanks, selected by us for their superior quality.

We only customize items from our catalog or items selected by us.

Yes! We're open to partnerships with brands and artists, and we have professional design services available.

For any of these cases, just send an email to geral@matterstu.com.

For personalized items, production takes 4 to 7 business days. From 40 pieces onward, add 3 days, and from 50 onward, add 5. In total, between the order and delivery, count on 7 to 14 days — the exact estimate shows up on each item's page and in the cart.

For our in-house collections (no customization), shipping takes between 48h to 72h.

Yes, but it's subject to prior confirmation.

If you have a very tight deadline, contact us beforehand via geral@matterstu.com.

For all of Portugal, Mainland and Islands, we offer free shipping on orders from 80 euros.

For Spain, France, Luxembourg, and Germany, shipping costs are calculated automatically at checkout after you enter your address.

We currently ship throughout Portugal (Mainland, Azores and Madeira), Spain (Iberian Peninsula and Balearic Islands, plus Canary Islands, Ceuta, and Melilla with international rates), France, Luxembourg and Germany, always via CTT. For destinations with customs (Canary Islands, Ceuta, and Melilla), import duties and taxes at destination are paid by the customer.

Yes. As soon as your order ships, you'll receive an email with the tracking link.

You can also check that status in your customer area.

An address change is only possible if requested by email (geral@matterstu.com) before the order is shipped to the carrier.

We operate online and orders ship via courier. We don't have a physical store or showroom, but in the Mafra area we offer hand delivery: just pick that option at checkout.

You can see the fit and the real pieces on our Instagram: @matter.stu

For personalized items: since the piece is made exclusively for you with your own artwork, Portuguese law (Decreto-Lei n.º 24/2014, art. 17.º) doesn't allow exchanges or returns for sizing mistakes. To avoid any mix-ups, we always recommend checking our Size Guide on the product page before completing your order.

For our in-house collections: if you buy an original piece from our brand (without any customization from you), the general rule applies. You get the usual 14 days to exchange or return the item.

We guarantee the quality of our studio, but if there's a slip-up, send us a clear photo of the item and the defect to geral@matterstu.com within a maximum of 30 days after receipt. We'll handle your case as a top priority.

If a refund applies (for pieces from our collections or validated returns), it's processed via the same payment method that you used within a maximum period of 14 days.

To protect the fabric and the personalization: always wash inside out, in cold water or at a maximum of 30 degrees. Don't use the dryer (air dry instead), and never iron directly over the print or embroidery (always iron inside out).

We use high-durability professional printing techniques.

If you follow the recommended washing instructions, the customization will stay vibrant and in perfect condition throughout the item's lifespan.