my initial impression of these glove be a bad one : they absolutely reek of some sort of organic solvent use during the manufacturing process . it be difficult to hold these chemical-laden glove up to my face when I be breathe heavy during training ; the smell make I want to vomit . after a few week , the smell become tolerable . however , it almost make I want to pay extra for leather glove . the glove be well-made , I have no complaint about the fit or finish . the thumb be comfortable and both side feel the same . the cuff be comfortable , with no sharp edge or other annoyance . the velcro be sew on straight and be easy to use . the thumb be attach , but can be easily free up if desire . if you just use they for hit the heavy bag , you be better off snip the attachment ; it will make it easier to grab the velcro and tighten it up . after make glove for decade , I suppose Everlast have it down to a science . these glove be hard . I would not want to get hit by they . if you want to spar someone , they will not appreciate it if you wear these glove . but the glove feel good on my fist . I can really go berzerk on the hardest part of my heavybag without feel any discomfort in my knuckle . I be not sure why Everlast claim that the glove have a `` anti-microbial '' lining . as far as I can tell , it be just polyester . in any event , it work fine . some other reviewer have complain that these glove fit too snug . I do not find this to be a problem . when my hand be wrap , they fit into the glove snugly , but the fit be proper . if you have fat , untrained hand , or if you be a large-boned heavyweight , you might experience a tight fit . for most people , the glove be as they should be . for the money , these glove be fine .