3S stands for Super-wide, Super Simple! A wide, shallow, garter-stitch triangle with options for decorative eyelet rows, and two pretty bind-off options.
While written for fingering weight yarn and small needles, more adventurous Ravelers can certainly use the same instructions with heavier yarn and larger needles … remember, if using a heavier yarn, you’ll need more of it!
July 29, 2011: Updated pattern with expanded instructions for setup rows, picot bind-off, and crochet cast-off. Also added close-up photos of picot bind-off and crochet cast-off to the pattern.