CHOOSE YOUR FOXELLI WADERS. Material 420D Nylon 2-ply Nylon 420D Nylon 4 mm Neoprene 3-layer Polyester Microfiber & Plaid Nylon. Boots Material PVC Boots with non-slip soles PVC Boots with non-slip soles PVC Boots with non-slip soles PVC Boots with non-slip soles 4mm Neoprene Booties Non-slip rubber soles, toe cap.