The STX Stallion 900 lacrosse arm pads are our elite level arm protection for players who want a standard size arm pad. The Stallion 900 line of protection was designed to be our most flexible and least restrictive while still giving you the protection you need on the field. These pads won't hold you back, with a flexible pad design and HD2™ foam keeping them lightweight. The sleeve material is breathable to help keep you cool.