Waterproof panniers

This project was a result of a first attempt at learning how to thermally bond different types of TPU coated nylon. These two products were 115 GSM (3.4 oz) Heat-Sealable Ripstop Fabric: Yellow and 190 GSM (5.6 oz) Ripstop Fabric, TPU Both Sides . While they’ve not had the extensive testing of other ideas on this site, the first few hundred kilometres have been very positive. Finished weight is just under 400 grams for the pair with all mounting straps, and they’re likely overbuilt by about 10%. Each bag is 10 cm deep, 20 cm wide and 50 cm tall (open) and 40 cm (closed with 4 folds) for a nominal volume of about 8 litres each. Effective working volume is ~9 litres. The laminated fabric is still easily opened and closed in the -30’s C. This posting is intended to be a DIY thought-starter not a detailed description.

An overnighter with the new bags.

This was a very time consuming project. Largely due to laminating the two fabrics together. The bags have shown no wear from both singletrack riding and loading into trucks. The only sewing was to attach the Omnitape straps to panels which were then welded to the bags, and sewing the buckle closures on.

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