On my latest trip to Thailand, I picked up a pair of Twins Special Thai pads from the Twins shop at Lumpinee. These are a slightly new design with 4 air vents, two on top and two on the bottom. I asked the people at the shop what the vents were for, they said so air can get out...well no shit I have held these for about 20 rounds on these so far, so they are not even close to being broken in yet. Pros: The handle has a great curve and is very strong. Nice dense padding. Even though these are mediums, I can hold for the hardest kickers. Light enough for fast combos. Outstanding quality. They will last for ever. Cons: The arm straps are kind of short. I wish I would have bought buckled pads, but they only had velcro in red and black. The velcro is not as tacky as I would like. I will likely tape these closed and slip my hands through the straps. The metal vents on the top edge prevent me from punching people in the face with the pad when they drop their hands because I am worried I might cut them. Long break in period. Not sure if this is a bad thing. The padding is very dense.