This is a COOL model, so they are breathable tights ^_^ Very popular tights. The crotch, knees, buttocks, and calves are mesh. Please take this opportunity to purchase them. CW-X Style Free Expert Expert Model ☆ Generator Stabilix Revolution ☆ Nike Adidas New Balance Asics ○ Mizuno Under Armour Puma ○ The North Face Salomon Montbell Patagonia Sports ○ Yoga Hot Yoga Pilates Marathon Mountaineering Hiking Camping Trekking ☆ Trail Running Running Training Workout Running Wear ○ Running Tights Training Wear Training Spats Leggings ○ Spats Tights