FLO

The SIK Flo line begins with the original SIK Flo, an oversized mallet that pgatour.com described as a reworked version of SIK's Mo mallet, built around a high MOI and low CG, with bottom wings that pluggedingolf.com said were designed to move the center of gravity back and keep it low. It is also the release most associated with the shape that drew the line its nickname. golfrus.co.uk called it the smashed spider look, and that aesthetic has followed the Flo name through most of its variations since, praised by some for the mallet's stability and criticized by others, per thehackersparadise.com, for a weight that made it a challenge to get into the hands of golfers who wanted mallet benefits without the bulk.

From there the line branched rather than simply aged. The Flo Armlock adapted the head to armlock putting with a longer shaft, in steel or LAGP graphite according to pgatour.com, carrying an MSRP of $549 by the same source. The Flo C-Series and the Line Back Flange edition both leaned into SIK's Descending Loft Technology, with golfmonthly.com and golfshaftsamerica.com separately describing four planar faces stepping down a degree at a time from top to bottom. golfmonthly.com's own hands-on take was direct: no matter how far ahead or behind the ball I moved my hands at impact, the ball rolled out much better than if I had a static loft face so the tech gets the thumbs up. The Line Back Flange edition carried notably specific head weights by neck type, per golfshaftsamerica.com, from 390g on the double bend to just over 415g in its heaviest build, numbers that speak to the same heft critics of the original Flo had flagged.

By 2022 the line had slimmed. The Flo M, and its M Standard and Modified variants, reworked the mallet into something lighter, prompting thehackersparadise.com to write that the FLO M may simply appear to be the FLO on a diet, but that 70g diet has created a putter that looks like a mallet and feels like a blade, a line the site repeated in its coverage of the model. golfsupport.com's take on the Flo M Standard agreed with the maker's own framing: the claim from SIK Golf is that it's a mallet that feels like a blade, and we totally agree. The 2022 FLO M also drew specific retail detail from thehackersparadise.com, including an availability date of 5/31/2022, a made-to-order build process with no pre-built stock, and a custom shaft upcharge of $410 for the LA Golf P-Series option.

The Standard edition rounds out the line's documented run, carrying forward the 303 stainless steel construction and satin finish golfsupport.com attributed to it, along with the same high MOI and low, stretched-out center of gravity language used across earlier Flo releases. Across eight releases, the throughline is consistent even where reviewers split: a mallet chasing forgiveness and loft correction through unconventional shaping, with the "smashed spider" look prompting real disagreement about whether the Flo's performance case outweighs its polarizing face.