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Finished measurements (after felting)
Length: Approx 7⅜ (7¾, 8, 8⅜)“ / 18.5 (19.5, 20.5, 21.5) cm
(Intended to be 1–2” / 2.5–5 cm smaller than foot, so slipper will stretch to fit)
Ankle Opening Circumference: Approx 11½ (11½, 13, 13)” / 29 (29, 33, 33) cm
(Ankle at its widest point plus 2–3” / 5–7.5 cm of positive ease)

Yarn
Columbia 2-ply by Imperial Yarn (100% wool; 4 oz / 170 yd / 156 m)
• 2 skeins in Natural, held doubled
OR
340 yd / 312 m 100% wool worsted weight yarn, held doubled