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TL;Dr DWR on sleeping bags is to keep them dry for short periods when they get put on wet grass for a few minutes. Adding DWR to your sleeping bag won't make it waterproof. Waterproofing spray ...
Answer
TL;Dr DWR on sleeping bags is to keep them dry for short periods when they get put on wet grass for a few minutes. Adding DWR to your sleeping bag won't make it waterproof. Waterproofing spray ...