Ultra III 是一款水陸兩用鞋，完美適合陸地和海洋的冒險。這款鞋是七年前初代 Ultra 的後繼款式，經過重新設計之後，比以往更輕、更黏而且更具赤腳感。輕量的六角形鞋面設計透氣而不吸水，並能輕易排水。全新的六角形抓地大底由粘性橡膠製成，提供良好的腳感、靈活性以及卓越的濕滑和乾燥抓地力。
Ultra III 的靈感源於自然界中最輕且最強的形狀——六角形，EVA 結構讓你的雙腳能夠呼吸並輕易排水，它輕便如跑步釘鞋，抓地力猶如攀岩鞋。
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Hong KongThe size should be 1 size down than normal size. Perfect pairs for sailing / kayaking
| US | UK | EU | CM |
|---|---|---|---|
| 5.5 | 3 | 35 | 21.9 |
| 6 | 3.5 | 36 | 22.6 |
| 7 | 4 | 37 | 23.3 |
| 7.5 | 5 | 38 | 23.9 |
| 8 | 6 | 39 | 24.6 |
| 9 | 7 | 40 | 25.2 |
| 10 | 8 | 41 | 25.9 |
| 11 | 8.5 | 42 | 26.6 |
| 11.5 | 9 | 43 | 27.2 |
