Darn Tough Women's Coolmax Boot Sock Full Cushion - (Light Blue - L) - 3 Pack Single wall titanium construction allows this cup to be put over a flame for reheating a drink or boiling water. - See more at: http://www.snowpeak.com/tableware/cups-mugs/titanium-single-450-cup-mg-043.html#sthash.ytyoLSLh.dpuf3 Pair Included Fast Drying No slipping. No bunching. No blisters. No hot spots Full Cushioning around the entire foot and shin area Made in Vermont