Billabong Boots - Billabong Women's Synergy Round Toe Boots - 5mm :: Women > Wetsuits. Sleek design with logo print to ankle and toeSuper stretch and flexbile neoprene constructionWomen's 5mm bootsExternal split toe bootieRubber outsole for durability and gripSealed and liquid taped seams to prevent water entryMaterial: 100% Neoprene Size: one size,UK 06,UK 07.