Part of an ice pack?

• Siberian husky, perhaps
• Iditarod team member
• Annual Yukon Quest participant
• Husky, for example
• Iditarod sight
• Iditarod Trail animal
• Part of a northern team
• Malamute, for one
• Iditarod toiler

Wiktionary Word definitions in Wiktionary
n. (alternative spelling of sled dog English)