Sea to Summit Frontier UL Collapsible Cup Sulphur

Amazon

A compact, collapsible camp cup designed for ultralight performance and convenient packability Sidewalls are made from BPA-free, food-grade silicone with a nylon ring to maintain shape and shield fingers from heat Base, rim, and center ring are constructed from lightweight and durable glass-reinforced nylon 66 for added structure and grip Holds 12 fluid ounces and collapses to under 0.8 inches thick; nests with Frontier plates, bowls, and the 2 liter Pouring Pot Measures 4.00 x 4.00 x 3.40 inches and weighs 1.9 ounces; designed to pack flat and integrate with ultralight camp systems

Snowcountry

The Sea To Summit Frontier UL Collapsible Cup 400ml is a lightweight, space-saving drinking cup designed for outdoor adventures and travel. With collapsible silicone sidewalls, it packs down to less than 2 cm high, making it easy to store in a pocket, pack, or cook kit. The glass-reinforced nylon base, rim, and center ring provide excellent stability and a comfortable grip. Ideal for backpackers, campers, and travellers who want compact, durable drinkware without sacrificing usability on the trail.