L1 AMERICANAHey rider, here you can find everything you've to know about the L1 AMERICANA PANT. AMERICANA PANT L1 NITRO The AMERICANA is a high quality L1 NITRO MAN PANT. The impermeability level is 20k (20000) mm of water column. A garment is definable waterproof if it holds up to 1k. Here we are 20 times