A worker reviews printed t-shirts at Assembly’s Portugal factory, showcasing premium custom apparel production.

Premium custom merch, done right

Discover how high-quality branded apparel can elevate your brand beyond basic swag. From company t-shirts to branded tote bags, Assembly creates premium merch designed for creators, teams, and businesses.

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The Assembly Difference

What makes high quality custom merch that lasts

  • Most merch is made from thin blends that shrink or feel rough after a few washes. Assembly uses dense, 100% organic cotton with a premium weight and soft handfeel that is built to last.

  • Most custom merch overlooks sizing and proportion, leading to awkward fits or impractical designs. Assembly carefully develops garments, tote bags, and caps so branded merch looks polished, feel comfortable, and work in daily use.

  • Most companies order branded merch as cheap giveaways, so people rarely use it. Assembly develops collections with premium fabrics, precise colour matching, and long-lasting finishes to create pieces people value and brands are proud of.

Close-up of a folded olive-green knit fabric with ribbed texture, showing detailed stitching, fabric quality, and soft material.

Why leading brands choose Assembly

Trusted by global fashion houses, Assembly brings that same expertise to custom merch for creators, startups, and teams.

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Custom merch made simple

From high-quality blanks to custom branded merch, Assembly makes it easy to create your own merch in 4 easy steps.

Start your merch journey
1

Choose & customise in Studio

Pick from our premium blanks and design custom merch for teams, customers, or events in minutes.

2

Try a sample first

Not sure yet? Order a blank garment in your chosen colour to experience the fabric, fit, and quality before placing your order.

3

Review & place your order

Once your order is placed, we’ll review all specifications before production to ensure your branded merch reflects your identity with consistent quality.

4

Receive your order in 4 weeks

Delivered on time and ready for staff uniforms, seasonal launches, or branded products that extend your brand experience.

Restaurant staff at Audo wearing custom branded t-shirts, showing how uniforms can build brand identity and enhance guest experience
Person wearing a green In August custom hoodie with blue graphic back print, seated at a desk in an office setting
Navy custom sweatshirt for Sound Metaphors with a yellow heart and circular logo design printed on the chest.
Château Royal green custom embroidered cap on a dark table beside a wine glass and water glass.

Start exploring premium custom merch with Assembly

Share a few details and our team will guide you on timelines, product options, and the best ways to customise merch for your brand.