Under Armour Men's UA Valsetz Venom Mid Tactical Boots Synthetic Aggressive UA Spine chassis forms a lightweight structure around the sole, delivering incredible support without sacrificing flexibility Water-resistant, high-abrasion ripstop nylon upper is tough, but breathable, for superior comfort Synthetic overlays add support, not weight, and won't absorb moisture Durable EVA midsole delivers cushioning and shock absorption, protecting your foot in any terrain Lightweight PU footbed, giving you a comfortable fit