Loon Outdoors Biostrike Strike Indicator - Pink | Reusable, Biodegradable Putty

Meet Loon Biostrike: a flexible putty indicator for fly fishing

Loon Biostrike is a pink putty strike indicator that helps you dial in the depth and the size of your indicator with a simple roll of wet fingers. The design prioritizes visibility and precise control on the water, making it a practical addition to trout or steelhead rigs.

Beyond its core function, Biostrike is built for reuse and environmental awareness. Roll it into a ball, apply it anywhere on the leader, and remove it when repositioning. When finished, store it back in the container to minimize waste and keep your gear organized.

Why the pink Biostrike stands out

The pink hue provides a high contrast against moving water and natural tones, helping you track strike activity with your periphery. The putty maintains its shape on lighter leaders while remaining responsive enough to be reshaped as conditions shift.

• Easy to size and shape the indicator to the desired depth and diameter
• Aids visibility when using small dry flies
• Reusable design for multiple sessions
• Biodegradable material that supports eco mindful fishing
• Simple to mold with wet fingers and reposition on the leader

Real world use and tips

Use Biostrike on leaders when fishing tiny dry flies, emergers, or light nymphs where strike timing matters. Its flexible texture lets you apply it in precise amounts close to the fly or farther up the leader for subtler cues.

• Roll a small amount to the desired diameter to match the fly size and water conditions
• Place on the leader above the knot where it remains accessible yet unobtrusive
• Reposition quickly if the water depth or target depth changes

Testing in the field reveals how the indicator reacts to different flows and light. While not a guarantee of results, Biostrike offers an adaptable option for anglers who want to experiment with indicator placement without changing flies.