This cap integrates a sturdy handle, which makes it ideal for use with larger bottles. The 100% leak-proof design and a stainless locking clip for added security mean you can stow your bottle in your sports bag or backpack with complete peace of mind. Included in the delivery kit of the Dometic THRM 120 thermo bottle, it also fits the Dometic THRM 50 / THRM 90 models.