With sizes from compact No. 6 to robust No. 12, they suit a variety of tasks such as camping, hiking, food prep, and bushcraft. The No. 8 Outdoor Knife is especially rugged, with a serrated blade section, water-resistant handle, and integrated whistle, designed for tough weather and emergency use. Trusted for over a century, Opinel knives blend tradition, functional sharpness, and durability for adventurers who value reliable cutting tools.