Glagla Classic Original Ventilated Shoe / Mens Trainers (11 US) (Navy) Mixed, , Ultralight footwear - at only 170grams (5.5 oz)!!. Lightweight Drytech mesh upper provides total air circulation. Three layered sole with engineered openings evacuates moisture. Extremely light, non-marking Neoprene PU sole absorbs shocks. Machine washable at 30 degrees.