Welded seams really are a phase up from taped seams and will be commonly be located in high finish waterproof backpacks. In lieu of stitching the seam and taping them to make a seal, The material is in its place fused together with warmth to create a watertight bond. Waxed https://emiliouvfaw.blogvivi.com/29326570/the-ultimate-guide-to-waterproof-bag-for-backpack