Constant velocity joint having a boot

A constant velocity joint having a boot constructed from a thermoplastic boot material, the thermoplastic boot material selected from a group consisting of a thermoplastic polyurethane, a thermoplastic polyamide, a thermoplastic polyolefins, a thermoplastic polyester, and a thermoplastic elastomer vulcanizate, the boot comprising a lubricating grease composition for lubricating the constant velocity joint the composition comprising:

• 55 to 92 wt % base oil;
• 0 to 40 wt % additives;
• 3 to 40 wt % of a calcium soap, wherein the calcium soap is a calcium salt of one or more saturated or unsaturated monocarboxylic acids having 10 to 32 carbon atoms, optionally hydroxy substituted;
• 0.5 to 20 wt % of the complexing agent, wherein the complexing agent is a calcium salt of one or more dicarboxylic acids having 2 to 16 carbon atoms or a calcium salt of one or more mono carboxylic acids having 2 to 8 carbon atoms, each of which is optionally substituted, or both;
• wherein the calcium soap and the complexing agent form a calcium complex soap,
• and
• 2 to 15 wt % calcium lignin sulfonate;
• relative in each case to the total composition of the lubricating grease,
• wherein the composition has a cone penetration value (worked penetration) from 265 to 385 mm/10 (at 25° C.), determined according to ISO 2137.