1 Micron, 4-1/2" O.D., 9 7/8 in H, Graded Density Filter CartridgeMfr #: 155359 75 EASE OF USE: Complete with a mesh upper, synthetic suede and synthetic leather overlays, and a hook and loop construction for easy on off. REVAMPED DESIGN: From the playground to the city, kids will be ready for anything in these trainers. A new take on the timeless ST Runner. ENHANCED TECHNOLOGY: Utilizes PUMA's SoftFoam+, a step in comfort sockliner designed to provide soft cushioning thanks to its extra thick heel. COMFORT AND