The Winning MS-600 is a 16oz lace-up boxing glove built around a multi-layer foam padding core, and it's the model most gyms hand a new sparring partner because the closure locks the wrist down tighter than anything else in the line. That padding isn't a single foam block. It's stacked in layers of different densities, so the outer layer absorbs the first shock of contact, the middle layer stabilizes the wrist and knuckle line, and the inner layer spreads what's left across the hand before it ever reaches your joints. Fighters who grew up on horsehair notice the difference immediately: horsehair gives sharper feedback and a crisper pop off the bag, foam trades some of that feel for consistent shock absorption round after round, which matters more once you're sparring five days a week instead of hitting mitts twice a month.
Step down to the MS-500 and you're at 14oz, still lace-up, still the same foam construction, just less mass. Choose the MS-500 if you're training three or four times a week and mixing bag work with light sparring, because the lighter shell keeps your hands from fatiguing over a long session. Step up to the MS-600 if sparring is a daily habit or your partners hit hard, because the extra 2oz of padding is the difference between feeling a shot and absorbing it. Most gyms that stock Winning gloves for their members default to the 500 for general training and reserve the 600 for anyone sparring seriously, and that split is a decent rule of thumb if you're not sure which one describes you yet.
At the top of the range sits the MS-700, an 18oz glove aimed at heavier fighters or gyms running high-frequency sparring, and most recreational boxers never need it. It gets recommended a lot because it's the biggest number on the price list and people assume biggest means best, but unless you're sparring daily at a serious weight class, the MS-600 already covers what you need. Below the MS-500, the MS-400, MS-300, and MS-200 drop to 12oz, 10oz, and 8oz. Those three are built for fight-night weigh-in matching and lighter pad work, not for absorbing repeated shots, so they're not ideal for anyone using them as a daily sparring glove. A boxer who buys an MS-300 because it looks similar to the MS-600 and then spars hard in it is the most common mismatch this brand sees.
Every weight in the lineup also comes in a hook-and-loop version, labeled with a B suffix instead of the lace-up MS number, and the padding inside is identical between the two closures. The difference is entirely in how the glove sits on your wrist. Lace-up pulls the cuff down tight and locks it there, which is why competition gloves and serious sparring gloves default to laces. Hook-and-loop trades a slightly looser fit for the ability to get the glove on and off solo, which is the more practical choice for someone training alone or rotating through partners quickly between rounds. Sizing runs true across the range, and the leather is hand-cut and stitched in Japan, which is part of why the fit feels closer to a tailored glove than a mass-produced one straight out of the box. If you already know your Winning size in one weight, the next weight up in the lace-up range fits the wrist the same way, so sizing rarely changes when you move up.
Picking the right Japanese boxing gloves in this lineup comes down to answering one question honestly: how often and how hard are you actually sparring? Choose a competition-weight model if you're matching a fight-night oz requirement, because that's the only situation those gloves are built for. Choose the MS-500 if you're training regularly but not sparring hard every day. Choose the MS-600 if sparring is routine and your partners don't hold back. The mistake to avoid is buying whichever model is cheapest or most available and assuming multi-layer foam padding performs the same at every weight, since the ounces are doing real protective work, not just changing the price tag. Wipe the leather down and let it air out between sessions regardless of which weight you land on, since that habit does more for glove life than the model number ever will. Hand-crafted boxing gloves at this level reward buyers who match the model to their actual training, not the one with the most recognizable number.
