The Battle of the Heavyweights! This gi review offers readers an exploration into the latest double weaves to hit the BJJ gi market. Double weaves generally offer bjj players a few distinct advantages. The thicker gi material made various grips more difficult, and the abrasive texture of the weave left many an opponents' face or fingers bloody and achy. More than just more GSM of the weave, the double weave gis featured extra industrial-strength reinforcements to hold the uniform together. This meant a shelf-life eons beyond what one could expect from a single, pearl, or ripstop gi. For years, the Howard Combat Kimonos were notorious for their heavy weight, durability, and iron collars. These gis became the gold standard for the heavy, durable gi. Much like the Carhartt brand work coats, HCKs were the epitome of utilitarianism: functional as a piece of equipment. The reputations of HCK's comp double weave, comp single weave, and the Haley's Comet-esque Absolute conjure memories of broken fingernails, failed collar chokes, and numerous arthritic medications. This review will compare the Ronin Imperial, and the Tatami Tank, the most recent model double weave gis. Each section will feature bullet points to quickly summarize, and some will be followed by a lengthier and more thorough discussion. I hope you enjoy! HCK COMPETITION SINGLE: size 5 From the HCK website: Made from 20 oz. traditional weave fabric that is incredibly soft, flexible and airy. [20 oz. converted to grams, for gsm, is about 566 gsm. Anyone that has trained in an HCK knows that they feel much heavier than the stated gsm. The standard single on the old website was listed as 16 oz weight (453 gsm), and most definitely felt heavier than other brands' 450 gsm gis.] THE IMPERIAL BY RONIN BRAND: size A1L Introducing the Imperial Gi by Ronin Brand. This is the heaviest true double weave Brazilian Jiu-jitsu Kimono in the industry that Japan has produced. The jacket is composed of a 890 GSM Poly/cotton material that is pre-shrunk (will still shrink 1-1.5" if you tried to). This is a one piece material gi and does not have the judo setsugi seam going down the middle. The interior is lined with a ultra soft brushed material for extra comfort. All major stress areas are standard reinforced. The pants are made from a ultra soft 11oz. poly/cotton material. Six belt loops are offered with durable stretchy rope string. THE TANK by TATAMI FIGHTWEAR: size A2 The Tank is a 950GSM Double Weave Jiu-Jitsu Gi, for those guys and gals who mean business. Made from a traditional Double Weave material, the Tank is build to last the test of time The Tank is a 950GSM Double Weave Jiu-Jitsu Gi, for those guys and gals who mean business. Made from a traditional Double Weave material, the Tank is build to last the test of time. Made on the same pattern as our best selling Estilo range the Tank is designed to fit like a modern BJJ cut but with a traditional feel. The Tank comes with some serious reinforcements on the inside of the Gi including a canvas trim across the main seam area and across the top half of the lapel. For added comfort we have brushed the interior of the jacket to make the Tank feel smooth when rolling. Make no mistake The Tank is one serious piece of BJJ kit Features include - 950GSM Double Weave Jacket - 14oz Canvas Pants - Estilo Cut - Contrast Army Green belt loops, draw cord and side vents. - Free Drawstring Bag Cut/fit: All three fit my build well. I'm 5'6”, 155 lbs, athletic build. Ronin: Most snug of the three for my build, narrow but IBJJF legal sleeves. Trousers are average width, not slim fitted. Tatami: more narrow than the HCK but slightly baggier than the Ronin in the sleeves and jacket width. HCK: the baggiest of the three, in the armpits, sleeves, skirt length, and trouser legs. Tatami on top of the HCK.