E+3 Plus is a sustainable clothing manufacturer based in Portugal, producing luxury streetwear for start-ups, small and medium-sized businesses, and established fashion brands. Its full-service, in-house production takes garments from initial concepts to finished products, with brands able to provide a tech pack or work with the company on development and sizing. E+3 Plus also offers size guides, a product catalogue, and quotes to support the creation process.

The catalogue includes sweatpants, shorts, hoodies, sweatshirts, zip hoodies, tank tops, and T-shirts in styles such as crewneck, V-neck, long-sleeve, and pocket designs. Products are made in Portugal using cotton or organic cotton fabrics, with options including heavyweight French terry and jersey. The company highlights durable construction, reinforced seams, anti-pilling finishes, and pre-shrunk fabrics.

E+3 Plus emphasizes certified materials, ethical production, sustainability, and innovation. Its services include custom washes and manufacturing techniques, full in-house confection, and worldwide exports, helping brands develop and produce quality clothing with a focus on responsible manufacturing.