From the source:
We have discovered that one pair of the socks (the one with Anna motif) in Disney Frozen 3-pack with article number 833 7410285 5170 1611 unfortunately does not meet Lindex safety requirements. The socks contain a chemical that is included on Lindex list of restricted chemicals.
The chemical that has been discovered is not allowed as it breaks down to substances that are suspected to be carcinogenic. It has been discovered in only one of our deliveries of this product but to be on the safe side, we encourage all customers who have received or bought these socks to return them to the nearest Lindex store for a full refund.
Our customers’ safety and the quality of our products are top priorities for us at Lindex and we have a major focus on this in the creation of our fashion. We regret that these socks incorrectly have passed our security controls.
The recall only affects the socks with article number 833 7410285 5170 1611.
Customers with questions can contact Lindex customer service e-mail:
firstname.lastname@example.org or telephone: +44 2030050009