co-poly fibers adds durability so you can play longer

Targeted compression provides support in key areas

Meets the USTA/ITF Stage 1 specification

overworked muscles of the hands and feet

the Pro Penn Marathon Extra Duty is an excellent choice

Babolat RPM Soft 16 1.30 660' Reel Size_08018 Narrow (AA) co-poly fibers adds durability soBetween comfort and flexibility, the Babolat RPM Soft 16 1. 30 660' Reel gives the best of both worlds. It's constructed with three layers: a flexible polyamide core to cushion impact, aramid powder within the co polyamide middle layer for durability, and an outer layer containing silicone to facilitate string movement. If heavy topspin and reliable control are your goals, go with the Babolat RPM Soft 16 1. 30 660" Reel! Outer layer in co polyamide