No specific yarn brand is suggested - the pattern only says to use fingering weight Shetland wool. The amounts listed per color are as follows:

• color A, 20g - “natural” black (ナチュラル・黒)
• color B, 50g - “natural” gray (ナチュラル・グレー)
• color C, 40g - “natural” light gray (ナチュラル・薄グレー)
• color D, 35g - “natural” brown (ナチュラル・茶)
• color E, 20g - “natural” dark beige (ナチュラル・濃ベージュ)
• color F, 20g - “natural” beige (ナチュラル・ベージュ)
• color G, 25g - “natural” natural (ナチュラル・生成り)
• color H, 20g - white (白)
• color I, 15g - gray (グレー)
• color J, 30g - natural (生成り)
• color K, 25g - light beige (薄ベージュ)
• color L, 5g - hydrangea (甘茶)
• color M, 20g - light brown (こげ茶)
• color N, 10g - black heather (霜降り黒)

Note that the colors marked “natural” are ones that the author has marked as not using any dyes. See pp.48-50 for a list of colors used.

Yardage listed above is an estimate based on typical fingering-weight wool.

Calls for Japanese size 3 & 4 knitting needles (3.0 & 3.3mm).