Rockfish Original Adjustable Matte Tall Wellington Boot Rockfish Original Adjustable Matte Tall Wellington Boots vulcanized rubber boots are hand-made, with rubber formulations optimized for resistance to cracking which is the No. 1 cause of premature failure in rubber footwear. Natural rubber has to be modified, in order for it to cure properly. Rockfish uses the absolute minimum of synthetic polymers in order to achieve this. Rockfish balance their environmental conscience with product longevity. Premature failure is wasteful and damaging to the environment, since the consumer may have to purchase several pairs of low quality boots, to match the service quality of Rockfish Wellies. Rockfish use more than 90% sustainable materials in every pair. Features: Unique high performance rubber formula Made to last and specifically designed for the equestrian environment Hand-made by our expert boot makers 100% Natural rubber, vulcanized to provide durability and strength Ergonomic fit to ankle, instep and calf Abrasion resistant rubber compound to the heel and toe Shock absorbing foam insole and foot bed Luxurious comfort underfoot, supreme durability 100% Waterproof