Sea To Summit Frontier UL Collapsible Cup - Aqua Sea ice pack The construction speaks to quality:

The construction speaks to quality: bag-sewn seams remain hidden from the front

Jersey knit crafted from the finest comb-spun cashmere

Not just fashionable but lightweight and breathable

if you normally wear a size 9

25" 18" 14

Sea To Summit Frontier UL Collapsible Cup - Aqua Sea ice pack The construction speaks to quality:Building on over a decade of experience in collapsible drinkware, the Frontier Collapsible Cup has been engineered to be sleeker, more ergonomic and lighter. Glass reinforced nylon 66 is used for the base, rim and center ring providing more stability and allowing you to grip the cup more easily. EU food grade silicone rubber sidewalls let the cup shrink down to less than 2cm in height. Designed to nest stack, these cups really do fit in anywhere