Rainy's Fly Tying Cross-Link Sheet Foam is a very durable and condensed closed-cell foam that works great for foam patterns.
Crosslink Foam – Dirty Water Fly Company
Fly Tying Leg Material, Chenille Foam & Body Material – Whitetail
Hareline 6mm Fly Foam - Tan
Air-Lock Foam Indicator
Rainys Cross link Sheet Foam
All Rainy's – Fish Tales Fly Shop
Foam – Rocky Mountain Fly Shop
TNL SEASON 4 - FLY FISHING BOW RIVER OUTFITTERS
Durable and Condensed Closed-Cell foam., This is more rigid (like a Flip-Flop) than the Evasote., This is great material for layering bodies, such
Rainy's Cross-Link Sheet Foam - 3.5 x 6 sheet