It is very difficult to identify whether the use of the thermosensitive polymer LeGoo offers advantages over the use of clamps or clampless techniques for infra-inguinal bypass. This issue of the journal provides much additional information about the use of LeGoo. We have summarised all the available evidence. In a very heterogeneous patient population, with heterogeneous graft type and location, the primary technical success rate remains high at 90% [95%CI 83–99], the 3 months secondary graft patency is 71 [95%CI 58–84]% and limb salvage is 78% [95%CI 68–89]%. These promising early results need to be followed by extended follow up of the patients and standardised outcome reporting in the future.