OK, but ...
My flask arrived OK, but one of SWIG's claims is false. This is the claim: "Usually flasks are made from two pieces of metal welded together, but this method often leads to weakness and cracking along the seams. My flasks have no seams, so they can’t ever leak."
This is not accurate. If you look inside a SWIG flask (at least mine), you can plainly see a huge black weld along the entire longitudinal axis, with weld spatter and heat discoloration etc. The flask has no *external* seams, it's true, but to say that it "has no seams" is misleading at best. Sure it won't leak, but I bought the flask mostly because the claim quoted above offered some protection from the vagaries of overseas metallurgy (slag inclusions, non-stainless welds, weak joints etc.). So that is a bit disappointing.