my son recently bought a ew pair of snowbee waders. After wading down the pool in them he found it very difficut to climb back up the bank, and on inspection found that the waders were double skinned from somewhere around the knee down, but that this "cavity" was not sealed at the bottom and filled with a considerable amount of water, making it very difficuly to walk until the water was emptied (a bit like the Billy Connoly incontinent trousers sketch). I can only guess that this, if intentional, is an attempt to give you more stability when wading (though i can't see that this would actually work), but my son found when he tried climbing ou of the river he could hardly lift his legs, or walk til he emptied that water out. Anyone else seen these waders and can explain the design?