Seam taping (seam sealing) applies a heat-bonded tape over stitched seams to block water entry through needle holes. It matters most when a jacket is positioned as waterproof / rain-ready, because even the best fabric can leak at seams.

In many lifestyle or streetwear “windbreaker” styles, full seam sealing isn’t necessary. Brands often choose:

• 1.Fully taped seams for serious wet-weather performance
• 2.Critical taping on high-exposure seams (hood/shoulders)
• 3.No taping for light wind shells where comfort/cost matter

Always confirm fabric/lamination compatibility before committing to taping.