Dave's Oh-Så-Iso

Dave’s Oh-So-Iso is a fly pattern designed to imitate the Isonychia mayfly, a key food source for trout. This pattern offers a realistic and effective presentation for anglers targeting fish feeding on these insects.

• Pattern name: Dave’s Oh-So-Iso
• Category: Fly fishing product
• Purpose: Imitates the Iso mayfly
• Available in a standard option