The only glove invented to naturally position your thumb over your fingers, (like you can in an MMA fight glove), reduce hand and joint wear by offsetting impact, and build correct punching mechanics. We feel that these are the best gloves for MMA and boxing for self-defense because they're the only training gloves invented to guide your hand into the optimal fist position. People with bad hands or joints can now enjoy the structural stability of a closed fist because a proper fist offsets impact from the hands and joints. Self defense fitness boxers can build the muscle memory to automatically form a proper closed fist (because that's how you'd be fighting). MMA fighters can make a fist just like on fight night. These leather gloves are crafted in small batches by expert artisans and have been recommended by MMA fighters, boxers, and coaches. Studies denote the importance of being able to form a proper closed fist From the study "The biomechanics of human fist strikes and their relevance to forensic medicine" (Bir et al., 2009) published in the Journal of Forensic and Legal Medicine:"The configuration of the hand during a strike, particularly the degree to which the fist is clenched, affects both the magnitude of force transmitted and the risk of injury to the striker.""Strikes with a loosely formed fist or with improper alignment of the wrist are more likely to result in injury to the metacarpals or carpal bones." From the study “Protective buttressing of the hominin face” (Carrier et al., 2012) published in Biological Reviews:“The proportions of the human hand allow the formation of a clenched fist in which the fingers fold tightly against the palm and the thumb locks across the distal phalanges. This configuration buttresses the hand and may protect the metacarpals during striking.”“The ability to form a fist was a selective advantage in male–male competition because it improved striking performance while protecting the hand from injury.”From the study "Epidemiology of Hand Injuries in Boxing" (Zazryn et al., 2003) published in British Journal of Sports Medicine:“Hand and wrist injuries were the most common injuries in both professional and amateur boxing, suggesting that despite protective equipment, the hand remains vulnerable.” Why It Matters: A Fighter’s Story: “After over 20 years in boxing, the worst injuries I sustained weren’t to my face or ribs, they were to my hands and joints. Eventually, the pain got so bad, I had to stop hitting the heavy bag.” These gloves were created out of that experience to protect the most important tools a fighter has: their hands. Read more about my story.... Disclaimer: These gloves are intended for heavy bag work and controlled MMA sparring. It's configuration resulting in a tight fist delivering a hard blow is not recommended for full-contact boxing. Use of this equipment is at your own risk. Disclaimer: For orders outside the US, the customer will be responsible for any custom duties, taxes, and other receiving fees.