What's the best material for outdoor stickers?

Vinyl is the clear winner for outdoor stickers. It is waterproof and UV-resistant, so it stands up to rain, sun, and temperature swings that would warp or fade paper.

• Waterproof: shrugs off rain, splashes, and washing.
• UV-resistant: colors hold instead of bleaching in direct sun.
• Add a laminate on top to extend lifespan and resist scratches.
• Specify outdoor-grade vinyl with permanent adhesive for cars, signage, and anything exposed long term.