Overview & First Impressions
Trivisa has been on a roll since it landed in the catalog, and the Hippo JM15 might be the most practical design the brand has shipped yet. It is a 3.4 inch folder built around a crossbar lock, a mechanism that keeps your fingers out of the blade path entirely. The blade runs 14C28N at 60 HRC, the pivot spins on ceramic bearings, and the whole package weighs 5.16 ounces with a 7.93 inch overall length. Three versions hit the site on the same day, and they are different enough that choosing one takes real thought.
Materials & Construction
14C28N is the smart pick for a working folder. It is a Swedish stainless that resists corrosion in wet weather, takes a sharp edge without fighting you on the stones, and it is not so hard that a twisted zip tie chips it. The blade is 0.14 inches thick with a swedge along the spine for a finer point. Handles split three ways: the CG pairs a rose-gold PVD blade with carbon fiber over G10, while the GM and RLYM both ride on textured Micarta scales.
Design & Details
The crossbar lock is the design story here. Push the bar across the handle and the blade swings free, release it and the blade sits locked with nothing in the cutting path. It is a fidget-friendly mechanism too, snapping open and shut with one finger while you watch television. The Hippo is one of those Trivisa knives that carries like a larger blade thanks to the deep pocket space, and the 4.53 inch closed length disappears under a jacket.
Real-World Use
In a week of box breaking, garden twine, and one heroic attempt at a clamshell, the Hippo handled everything a folder should. The 3.4 inch blade has enough belly for food prep at a campsite, and the swedge tip pierces shrink wrap cleanly. Compared with most folding knives at this weight, the balance sits right at the pivot, so detail cuts feel controlled rather than clumsy. It opened and closed smoothly all week on the ceramic bearings with no lubrication.
Ownership Notes
Maintenance is simple: rinse the pivot if it gets salty, dry it, and add a drop of oil monthly. The Micarta versions will darken where your hand grips, which most owners count as a feature. The rose-gold PVD on the CG is cosmetic and will show wear at the edge eventually, so buy it for the look and keep the stonewashed RLYM if you want one that hides abuse. At 60 HRC the edge touches up in under a minute on a ceramic rod.
Who Is This For?
Buy it if you want a crossbar lock folder with honest steel and a real handle selection, or if you have been watching Trivisa from the sidelines and wanted a full-size model first. Campers and anglers get the most from the corrosion resistance. Skip it if you prefer a flipper tab or need a knife under three ounces, because this one carries big and knows it.
Final Verdict
The Hippo JM15 is a well-judged debut for the family: the lock is genuinely nicer to live with than a liner, the steel is chosen for work rather than spec sheets, and the three variants cover every taste from dressy carbon fiber to beat-up Micarta. EdcMall has all three handles in stock, and the RLYM is the one I would hand to a friend who has never owned a crossbar folder. It is a confident entry among EDC knives this year, and the kind of first Trivisa that turns browsers into repeat buyers.
