Mr Darn

this is going to seem a bit daft, but i've seen something similer and i cant find anything like it.

What i want is a velcro "chap" type thing to go around my calfs, so about 12 inches in width, and long enough to wrap all the way round my leg.

The keywords i'm using to search are not bringing much back.

What its for: I am a diver, using a neoprene drysuit. i'm finding, when i go slightly inverted to inspect something on the sea bed, that what little air i have in the suit goes to my feet, and makes a baloon type effect in my calfs, making it hard to swim until i right myself properly. My buddy has elasticated 'chaps' that has a velcro fastner which solves the problem, but he got his from another buddy, who got them from another buddy.... yo can see where i'm going with this.

I can find equestrian chaps that look exactly what i'm after, only they are leather, and i need them to be made of fabric, preferably elasticated fabric. The sea would ruin leather ones in a matter of days.

Any help?