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GSI Boulder 10 Flask



  • Shatter-resistant, copolyester resin body and grippy, silicone bumper mean this flask can go anywhere
  • Wide mouth makes for easy filling, pouring and drinking
  • Hinged top with silicone grip is easy to open and impossible to misplace
  • Convenient molded graduation marks
  • BPA Free

Technical Specs:

  • Weight: 4.1 oz
  • Material: Copolyester, Silicone
  • Major Dimension: 10 fl. oz.
  • Contents: Hinged cap, Silicone Bumper, 296ml Flask
  • Dimensions: 3.7 x 1.1 x 6.5 inch