Overview & First Impressions
Two point three nine ounces. That is the number that matters here, and it is genuinely odd for a knife with a full liner and a lock. The Batwing-YP pairs a 2.99 inch sheepfoot in 14C28N with a PEI handle, and the result is 6.7 inches open with a 3.7 inch closed length. PEI is the amber coloured polymer you have seen on ultralight knives and aircraft parts, and on paper it should feel cheap. In the hand it does not.
Materials & Construction
14C28N again, this time with a sandblast finish and a stated 60 HRC plus or minus two. It is the low maintenance choice: no rust worries, no exotic sharpeners, and it takes a toothy working edge in about two minutes on a medium stone. The blade is 0.11 inches thick, which is thin enough to slice well and thin enough that you should not twist it in a cut. PEI handles insulate, so cold weather does not bite your palm the way metal does.
Design & Details
The sheepfoot shape is the practical choice for a knife this light. No belly to speak of, a straight edge that cuts tape and rope cleanly, and a blunt-ish tip that survives being dropped on concrete. The crossbar lock is the same unit Trivisa uses across the line, ceramic bearings included, and it operates smoothly despite the reduced mass. There is a slight flex in the PEI scales if you squeeze hard, and that is the trade for the weight.
Real-World Use
This is a pocket knife for people who hate pocket knives. It vanishes in running shorts, it does not print, and it does not pull your waistband down. I used it for a month of parcel tape, string, packaging straps and one memorable session trimming zip ties under a desk. The thin stock glides. If you are used to a beefy titanium frame lock the Batwing will feel like a toy until you start cutting with it.
Ownership Notes
PEI is tough but it is not scratch proof, so keep it out of the same pocket as your keys. The sandblasted blade will show fine scratches from cardboard, which is normal and does not affect performance. Flush the pivot every few months, because a light knife collects pocket lint faster than a heavy one and the crossbar is sensitive to debris. A strop keeps 14C28N sharp almost indefinitely. It is also a good reminder that folding knives do not have to be heavy to be worth carrying, and that EDC knives built around weight savings can still cut properly.
Who Is This For?
Buy it if weight is the first thing you check on a spec sheet, or if you want a knife that disappears in athletic clothing. It is a strong choice for runners, cyclists and anyone who travels light. Skip it if you want a knife with heft, if you dislike polymer handles, or if your daily cutting includes anything that needs a thick, stiff blade.
Final Verdict
The Batwing-YP is the lightest knife in my rotation and the one I reach for when I am not wearing jeans. It gives up a little rigidity and gains a lot of carry comfort, and the 14C28N blade means you never think about rust. For the money it is a clever little tool. EdcMall lists the YP alongside the micarta Batwing Plus if you want a heavier handle.
