Orca Orca - SwimRun Core Arm Sleeves - Men's Orca - SwimRun Core Arm Sleeves - Men's These neoprene sleeves work like small paddles to boost your stroke performance. You can combine the Orca men's Swimrun Core Arm Sleeves with any top or use them as a replacement for your Swimrun... RRP: Was: Now: £54.00 Choose Options