Nike Men。OVERVIEW Nike GP Challenge Pro Men’s Hard Court Tennis Shoes (Size 11.5, Style FB3145-400) in Thunder Blue/Obsidian/Football Grey/Blue. Normally wear size 11 but went up a half size based on broad online recommendations—these fit perfectly fine. CONDITION Lightly worn about 20 times, with 90% of use on indoor courts—excellent condition overall, minimal outdoor wear. Breathable padded mesh upper with TPU reinforcements and rubber toe drag-guard ensures a secure, durable fit. PERFORMANCE Zoom Air heel unit and EVA foam midsole provide responsive cushioning, while wider forefoot base, midfoot stability plate, and herringbone rubber outsole deliver stability, traction, and abrasion resistance for hard courts. Ideal for baseline rallies and long matches at 14.9 oz (avg size).