STS - SEA TO SUMMIT Frontier UL Collapsible Cup

The Sea to Summit Frontier UL Collapsible Cup is the perfect companion for your next outdoor adventure. Engineered for backpackers and campers who value both space and convenience, this ultra-lightweight cup combines innovative design with practical features.

With a generous 400 mL capacity, the Frontier UL Cup is crafted from BPA-free, food-grade silicone and reinforced with glass-reinforced nylon at the base, rim, and center ring for enhanced stability and grip. The heat-resistant rim allows you to safely enjoy hot beverages, while the flexible silicone sidewalls collapse easily, shrinking the cup down to less than 2 cm (0.8 in) in height—fitting neatly into your pocket or cook set.

Weighing just 53 grams (1.9 oz), this collapsible cup is ideal for fast-and-light travel, bike touring, or any outdoor kitchen setup. Its clever design allows it to nest into the Frontier 2L collapsible pot, saving even more space in your pack. Durable, easy to clean, and built to last, the Frontier UL Collapsible Cup is an essential for every outdoor enthusiast seeking convenience without compromise.

Key Features

• Volume: 400 mL
• Weight: 53 g (1.9 oz)
• Materials: BPA-free, food-grade, heat-resistant silicone with glass-reinforced nylon rings
• Collapsible: Yes, shrinks to less than 2 cm (0.8 in) in height
• Nesting: Fits inside Frontier 2L collapsible pot
• Dimensions (Expanded): 10.1 cm x 10.1 cm x 8.8 cm (4 in x 4 in x 3.5 in)
• Best Use: Backpacking, camping, travel, cycling