
Haper william
fashion designer activewear tech pack designer harness designer
Skills

See my services


Portfolio
Work experience
Apparel designer
Fabletics • Freelance
May 2025 - Present • 1 yr
I am an Activewear Tech Pack Designer with experience in creating detailed and production eady tech packs for sportswear and athleisure brands. I specialize in developing flat sketches, specification sheets, and Bill of Materials (BOM) to support garment manufacturing. I have worked on activewear pieces such as leggings, sports bras, and training tops, ensuring accurate construction details and fabric selection suitable for performance wear. I also collaborate with manufacturers to support sample development and fit corrections, translating design concepts into factory eady products.
Fashion tech pack designer
Fashion Spa House • Freelance
Aug 2023 - Present • 2 yrs 9 mos
I design detailed and production ready tech packs for men’s, women’s, and streetwear brands in Fashion Spa House. My work includes flat sketches, garment construction details, size specifications, stitching instructions, fabric selection, trims, labels, and packaging guidelines. I collaborate directly with manufacturers to ensure accurate samples and smooth production. My tech packs help reduce sampling errors and speed up the production process.