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SPECIALIZED Flag Black Little Big Mouth Flag Black 21OZ

From £12.00
21 oz

Our best-selling bottle the Little Big Mouth 21oz Bottle takes a revolutionary design and shrinks it down a bit. It's conveniently shaped and absolutely leak-proof. It has a tight-sealing Big Mouth screw top that's ultra-wide for adding things like ice or your hydration powder of choice. This piece also provides an incredible level of water flow that's up to 50% greater than the competition. Meanwhile we gave the bottle a flexible ergonomic design that grips to cages and fits easily in the hand while the bottle's construction is made from BPA-free plastic that's 100% FDA food-grade approved.



  • Tight-sealing Big Mouth screw top is wide enough for ice cubes and powder drink mix. Wide water channel delivers 50% greater flow than other leading bottles. Plus, improved functional outside grip.
  • Large, soft reliable poppet top is easy to activate, delivers excellent flow, and seals tight. 100% Leak Free
  • Easy to grip, more flexible than original Little Big Mouth
  • Also available in 24oz Big Mouth option
  • BPA-free plastic made from 100% FDA food-grade materials and printed with non-solvent base (UV cured), CPSC-approved ink and materials


  • Tight-sealing Big Mouth screw top is wide enough for ice cubes and powder drink mix. Wide water channel delivers 50% greater flow than other leading bottles. Plus, improved functional outside grip.
  • Large, soft reliable poppet top is easy to activate, delivers excellent flow, and seals tight. 100% Leak Free
  • Easy to grip, more flexible than original Little Big Mouth
  • Also available in 24oz Big Mouth option
  • BPA-free plastic made from 100% FDA food-grade materials and printed with non-solvent base (UV cured), CPSC-approved ink and materials

Colours Revel Trans, WORDMARK TRANS
Sizes 21 oz
Brand SPECIALIZED
Model Year 2022
Barcodes 888818899258, 888818911080
SKUs / Part Numbers 44422-2151, 44422-2154

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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