Stitch Inside-Out! Fold up 1/3 of botom and cut square notches at B and D. Whip stitch sides from A/A' to B/B', and C/C' to D/D'. Sew at bottom corners (like a moccasin heel) from E/E'over B/B', and the other corner from F/F' over D/D'. Turn Right-Side out. Pound seams flat with a wooden dowl and mallet.