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Red has been covered already, and it really is the most practical colour to have with you at night, as it is the only one that doesn't impact your night vision significantly. The others, though, a...
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#1: Attribution notice removed
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System
·
2020-05-27T11:08:48Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/a/14418 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/