Original Churchill Slashers - Natural Rubber Kids' Training Fins size 1-2 for children 3-4 years old Made out of 100% natural rubber, the Churchill Slashers propel swim fins to a revolutionary level of comfort, allowing you to maximize your kicking power and acceleration. Original Churchill - MADE IN MALAYSIA. Size XXS, fits children 3-5 years old, shoe size 1-2.5, foot length 7 3/4" - 8 1/4". Churchill Slasher "Floating" Fins are the most comfortable fins in the world. Designed for bodyboarders, this hybrid of the Makapuu fin is extremely lightweight and is engineered to fit the foot.