A list of potential substitutes, if you can
Fibra Natura Cotton Royal 100% Cotton, 5 Skein Value Pack, 500g, code FNCR Fibra Natura
Fibra Natura Radiant Cotton Egyptian Cotton Steel Grey Yarn 203
Radiant Cotton by Fibra Natura
Fibra Natura Radiant Cotton Egyptian Cotton Steel Grey Yarn 203 Yards
Ravelry: Kelly Tee pattern by Amy Gunderson
Fibra Natura Cotton Royal 100% Cotton, 5 Skein Value Pack, 500g, code FNCR Fibra Natura
This yarn knits up much softer then I expected it to, and it's actually a lovely texture and a very strong yarn, with lots of colour choices.
Fibra Natura - Radiant Cotton (100g)
Cotton Yarn Fibra Natura Cottonwood Yarn Cotton Crochet Yarn Dk
Fibra Natura Radiant Cotton