Full Freezer Caddis

Once you've harvested an elk, a deer, a turkey, a duck, and a chicken you'll have the materials you need to tie this fly. OR you can go visit your local fly tying shop and pick up the materials... Regardless, it's a buggy caddis pattern that has a bunch of floaty stuff built in so you should always have a good supply of them for your summer dry fly boxes. It'll move everything from the pickiest spring creek fish to the most opportunistic freestone trout. Just use a CDC safe flotant and all your standard drying tricks to keep this floating high.  

https://www.youtube.com/watch?v=-j74q9MoPSs