FIDLOCK

TWIST Thermo Sleeve

What Our Gearhead® Experts Are Saying:

"I added the TWIST Thermo Sleeve to my 590ml bottle for summer training rides and the temperature retention through two hour efforts in direct heat is genuinely impressive for something this lightweight. The precision connector recess is the detail that matters most for riders already running the TWIST system because the snap and release feel identical to riding without the sleeve."

Temperature management during long summer efforts is a real performance variable, and the FIDLOCK TWIST Thermo Sleeve addresses it without requiring a change in bottle or mounting system. Sized to fit the TWIST 450ml, 590ml, and 600ml bottles, the sleeve slides on and zips closed in seconds, adding insulation that keeps cold drinks meaningfully cooler through sustained heat and direct sun exposure across efforts where an uninsulated bottle would be lukewarm within the first hour.

The sleeve is constructed from flexible chloroprene rubber, a material chosen for its thermal retention properties and its ability to conform closely to the bottle profile without creating cage fitment issues or adding noticeable rotational weight. An offset recessed grip runs the length of the sleeve, providing a secure contact point for one-handed removal during efforts when grip is compromised by sweat or wet conditions.

The engineering detail that makes the Thermo Sleeve work within the TWIST ecosystem is the precision-fitted connector recess machined into the base of the sleeve. This recess maintains exact dimensional compatibility with the magnetic TWIST Connector, ensuring that the snap-on and twist-release mechanism functions identically to an unsleeved bottle with no reduction in magnetic engagement strength or release precision. For riders already running TWIST bases across their bikes, the Thermo Sleeve integrates into the existing system as a seasonal upgrade rather than a workaround, keeping the full performance of the mounting system intact while solving the one thermal shortcoming of a standard bottle on a hot day.