Equipment Videos Helios 3 Fly Rods: How to decide between D and F versions 1132 How to decide if your fishing conditions favor using the H3D or H3F versions. How to Load The Ultralight Vest 1133 How to loads your fly-fishing vest so that everything is at his fingertips. How To Use The Dropdown Feature Of The Ultralight Waders 1134 The ORVIS Ultralight fly-fishing waders convert easily. How Load The Sling Pack 1135 Learn how Tom Rosenbauer loads his ORVIS Safe Passage Sling Pack. Attaching Fly Line To Leader 478 See this real easy way to put your leader on your fly line, without any knots!