I have used synthesis gloves for about 2month, lifting not too heavyweights (about 70kg on bench EC) And They started to disintegrate, as you can see from the picture. I am no professional bodybuilders and expetced gloves to last at least 6month before wearing out. Not this case. I asked for a refund and told what this is normal !!! Good price, solid build but poor durability.Would not buy again.