Compared to stitching alone, using a quality seam sealing tape makes your finished product stronger (i.e. it lasts longer) and also more waterproof.
PET Seam Seal Tape
70202279017: 3M™ Polyurethane Protective Tape 8681HS, 36173, Medium Dark Gray, Skip Slit Liner, 6 in x 36 yd, 2 Roll/Case
Ultralight 54 Tape Strip Lightest Backpacking & Hiking Repair Tape – Zpacks
Zpacks Offers the Best Lightweight Backpacking Gear: The Ultralight 54 Tape Strips are made with adhesive stuck to thin Dyneema Composite Fabric as
54
Seam Sealant & Gear Repair - Ripstop by the Roll
Dyneema® Repair Tape Fix Holes and Punctures - Ripstop by the Roll
Fabrics with Dyneema® - Ripstop by the Roll
Dyneema® Repair Tape Fix Holes and Punctures - Ripstop by the Roll
This double sided, clear transfer tape is offered in 1-inch or 1/2-inch width options. It is a pressure sensitive adhesive tape with a high bonding
CT-PSA Tape for Dyneema® Composite Fabrics (by the yard)