TRX Weighted Vest
Very comfortable, easy to adjust, great weight distribution, doesn't bounce or shift even during rapid movements. All-around high quality. One criticism is that the weights are difficult to remove, but I recognize that is maybe by design to prevent them from jiggling around in their pockets. I accept the trade off. I also appreciated the customer service from Tim -- I had a series of questions and he was very responsive and helpful over several emails.