Definitely weather resistant, with a grooved and gasketed lid. Not waterproof for your photography equipment.
I have not had mine exposed enough to know for sure about long-term UV resistance. My feeling is that it will hold up to several years of travel exposure.
I love my Wolf Packs. Although they are not technically water- or dust-proof, they are very durable and I might use nothing but them if they came in more sizes. Space gets tight in the bed of my Tacoma, and I have the MTM due to it filling a specific need (dry, non-perishable food) and a specific space. If there were a Wolf Pack of the same size I’d have it because they can really take a beating.
