Scottish darning involves rounds of blanket stitch that build on one another to create a stretchy fabric, great for mending a circular shape.
Sock Darning: How to Darn Your Socks — Collingwood-Norris
How to Darn a Sock in Three Minutes.
SweaterDoll - Allison Dey: Mending: Darning Socks
Visible Mending - Scotch darning
Visible Mending - Scotch darning
How to Mend Socks to Save Money - Bellatory
visiblemending using a simple checked darn to repair a sock
How to Mend a Sock : 8 Steps (with Pictures) - Instructables
How to Mend Socks to Save Money - Bellatory
how to fix a hole in your socks with darning technique
How to DARN a SOCK, Quick and easy sock mending technique
How to Darn a Sock in Three Minutes.
The Make Do Homemaker: When Life Gives You Lemons: Mending 101: How to Darn a Sock
How to Mend Socks to Save Money - Bellatory