Sawyer Mini Twin PackThis amazing little filter weighs only 65 g and is fitting in the palm of your hand. The best ratio of weight, dimensions, and performance. Drink directly as a straw, attach to Sawyer Squeeze Pouches or Evernew water carry use inline, or attach to standard threaded bottles. The MINI uses the same exclusive 0. 1 m hollow fiber membrane filter used in Sawyer other filters. Although not quite as quick as the SP129 version, you will still be bowled over