1/2" Tri-Glide Buckle

Used two of these to make a detachable sternum strap for my daypack and the 1/2" webbing slides through cleanly with no snagging at the corners. The finish is smooth enough that it doesn't chew up the strap edges.

Swapped these onto a pack strap to make it detachable and the 1/2" webbing slides through the tri-glide slots without any bunching. Tension holds fine when I cinch it down.

Swapped these onto my pack's sternum strap after the original plastic cracked, and the 1/2" webbing slides through without any snagging. Nice and solid, holds tension well on steep climbs.