Bundle & Save: Buy 3+ Packs, Get 10% Off Automatically. Mix and match any patterns. Discount applies in cart, no code needed. What It Imitates: Slim-profile mayfly nymphs about to emerge — that split back mimics the wing case cracking open, which trout key in on when they’re eating bugs just before they hatch. Type: Nymph / Emerger Pros (Why You’ll Love It): Split-back design perfectly imitates emerging mayflies Slim body gets down fast and drifts naturally Bright yellow color grabs fish’s attention Deadly on pressured fish that have seen "standard" nymphs all day Best Ways to Fish It: Fish it as one of your flies on a double nymph rig, or in a dry-dropper rig under a dry fly (we recommend the Parachute Adams). Where & When to Use: Best in riffles, soft seams, and slower runs from spring through fall, especially when mayflies are hatching and trout are keyed in on emerging insects. Extra Tip(s): On tough, slow-moving flats, an unweighted nymph drifts more naturally than a heavy fly — perfect for fooling picky fish in clear water. What’s in the Pack: 3x Crackbacks tied on premium hooks.