A circumferential compression sleeve has bladder openings extending
through a bladder, making the sleeve generally breathable and comfortable
for the wearer. The openings include at least about 4% of a total surface
area of the bladder. The device also has a static evaporation rate
through the device of at least about 20 mg/minute. In one example, the
device includes a wicking layer for contacting the wearer's skin. The
wicking layer wicks moisture from the wearer's skin and generally moves
the moisture to portions of the layer in registration with the openings
where the moisture is allowed to evaporate therethrough.