sunlight i.e. uv rays - Bad! Does deteriate, but then again how much time do you spend fishing out in bright sunlight. Rhetorical question: How long should you keep a spool of tippet anyway? (Sincerely/humbly asked) My chest pack has a zippered compartment for the tippet material.

------------------
Live each day as if it were your last, some day you'll be right!