CRESSI Eddie Swim Cap Bundle - Two Unisex Swimming Caps, Black/White + Blue/White, One Size. This swimming cap is made of pure silicone of first quality, extremely resistant and elastic. Cressi is a family-owned company that has passionately developed aquatic sports products since 1946. Made from high-quality silicone, these two useful and affordable swimming caps keep your hair dry and away from your face while swimming. They are ideal for training or water games.