Rainy's Dave's Flexament Thinner is the original formula by Dave Whitlock — a flexible tying cement preferred by bass fly tyers when a fast, high-build finish is desired.Flexament is a go-to cement for a wide range of tying applications. It's famously used on the Bullet-Head Hopper (Madam-X) pattern, where it helps prevent deer hair from splitting and keeps the head tight and durable. It's also well-suited for winging material, thread heads, and anywhere a flexible, fast-drying finish is needed.Key Features: Original Dave Whitlock formula Flexible tying cement for a fast, high-build finish Used on the Bullet-Head Hopper pattern (Madam-X) Prevents deer hair from splitting Suitable for winging material 1 oz bottle A trusted staple on any bass tyer's bench — Flexament delivers a durable, flexible finish that holds up to hard-fighting fish and repeated use.