I use the glove with 12oz in Krav Maga training to sparring. For us the most benefit model, and so far there is quite a positive experience. Durability is of course limited (artificial leather), it fit, design and upholstery are very neat. A chemical odor is not noticed. The shutter has a slightly sharp edge. Therefore, one should pay attention to the glove to close cleanly to inflict no injury to the training partner.