Sportswear customization and manufacturing
Home / All / Start Your Order / What Is a Bill of Materials in an Activewear Tech Pack?

What Is a Bill of Materials in an Activewear Tech Pack?

Update Time:2026/9/9
TECH PACK CONTROL

A Bill of Materials, or BOM, is the itemized list of materials, trims, branding components, and packaging required to manufacture one activewear style.

It gives the brand and manufacturer one clear reference for what must be sourced, approved, and used in sampling and bulk production.

What an activewear BOM may include

  • Main and contrast fabrics
  • Lining or power mesh
  • Elastic and sewing thread
  • Bra cups, zippers, and drawcords
  • Heat-transfer logos or embroidery
  • Woven, size, and care labels
  • Hangtags, packaging bags, and stickers

What each BOM line should specify

  • Material or trim specification
  • Color and size
  • Supplier or material reference number
  • Garment placement
  • Quantity or consumption
  • Approval status where applicable

Example: sports bra BOM

A sports bra may use one main nylon-spandex fabric, power mesh lining, underbust elastic, removable cups, a heat-transfer logo, care label, and individual packaging. Each item should be listed separately rather than described only in the design notes.

A clear BOM helps calculate costs, source the correct materials, prepare samples, purchase bulk components, and keep production aligned with the approved specification. At Call The STYLE, the BOM can be reviewed with the Tech Pack before sampling and updated whenever an approved material or trim changes.

Review Your Tech Pack