The Adidas Weighted Gloves are relatively light weight. Held close to your body they won't have a radical effect on your muscles, but if you place that weight a long way from your center of gravity then the effects can really start to be noticeable. These weighted gloves have a super quick on/off design so that they are comfortable and at the same time practical. The soft material gives you a close fit but also ensures that you can use your hands freely at any time.