Custom Tumblers & Travel Mugs, Manna Boulder Two-Piece Camping Mug Gift Set - Vacuum Insulated & Temperature Control, The Manna Boulder II Two-Piece Camping Mug Gift Set is the perfect gift for your camp-loving clients and friends. This set includes 2 Boulder mugs with handles and 14 oz capacity, enclosed in a medium-sized black gift box. Each mug is made of stainless steel, is vacuum sealed and double walled and comes with a black, push-in lid with sliding closure. Use this mug for the outdoors and it will keep your cold drinks cold for 12 hours or for the indoors as it is compatible with most single serve coffee machines and will keep hot drinks hot for 8 hours. These mugs are FDA compliant and BPA free. ... #GS2207 $49.52/each.