Waterproof and breathable, the Extreme Boot has been designed as a ‘total concept’ product. All dimensions of comfort are covered: Temperature regulation – using Outlast® adaptive comfort system, this ‘smart technology’ changes temperature in response to your bodies needs, keeping you in your comfort zone longer. For dryness, our TP Ocean waterproof breathable membrane works together with the high wicking Dri-Lex® lining to help transport perspiration to the outside. Uppers are constructed from high grade waterproof leather. Using Sports shoe technology – an EVA mid sole delivers cushioning and stability, whilst the unique sole unit features water dispersion channels and is double razor cut for maximum grip on deck.