Ta - not sure which I have tbh - it does a very good job but it's not leakproof - when you open the sippy bit, take a swig, and then close it there's always some that pools/falls out. Not a biggy but if a drip got on a document or something in my bag or some clothes etc I'd be annoyed.
The v2 no spill lids are far superior to the v1 ones which were worthless!