Uploaded April 2025 | Updated September 2026, 3 hours ago

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SPAN LOOP VS ALPINE BUTTERFLY:

SPAN LOOP:
Easier to tie for beginners
Quicker to adjust
More compact
It's an in-line knot.
Easier to tie under tension

ALPINE BUTTERFLY:
Stronger in tension
More versatile for load-bearing
Secure in multiple directions
Easier to check your work (for Rescue and Climbing)

Summary:
For non critical and quick applications like a campsite etc, The Span Loop is generally a better choice. Especially if you're used to just the slip knot, you just have to remember one extra step.

For critical or advanced usage, the Alpine Butterfly is the way to go. It's a staple in climbing, arborist usage, and rescue because its very trustworthy and has clear checks to know you've tied it properly.