LifeStraw Peak Squeeze vs Simple Modern Wave

Lifestraw has re-engineered the filter membrane and backwash accessory for better performance against sand and silt, and for maintaining great flow over the long haul. Every element of the system is super compact, and removable filters are easy to stow away. Plus, unlike other water filters, it's extremely versatile. The new straw boasts threading and a hydration hose connection allowing it to be used with standard water bottles or hydration packs

By the evening there was only one or two shreds of ice left. I decided to stop drinking it after 6 hours to really test it. I left it sit overnight probably half way full maybe less and that shred or two or ice cubes left. I woke up the next morning and the ice was all gone but the water was still ice cold somehow! Very impressed