The XT Fin is the top choice for high-performance diving, featuring a POM swivel buckle for easier adjustment and donning. The TPE blend ensures efficient finning in strong currents, and the versatile blade design suits various kicks. Lighter than traditional rubber fins, they prevent cramping during long swims. The 12-inch marine-grade stainless steel spring-heel strap allows for quick donning and doffing. With a molded heel pad, low-profile finger holds, and adjustable fit, these fins provide comfort and ease of use. TECH SPECS Small Medium Large X-Large Weight 4.3 lbs | 1.95 kg 5.4 lbs | 2.45 kg 5.8 lbs | 2.63 kg 5.9 lbs | 2.68 kg Depth of Foot Pocket 8 in | 20.32 cm 9.25 in | 23.5 cm 10 in | 25.4 cm 10.5 in | 26.67 cm Width at Opening 3.5 in | 8.89 cm 4 in | 10.16 cm 4.25 in | 10.8 cm 4.5 in | 11.43 cm Width at Toe 2.5 in | 6.35 cm 3.25 in | 8.26 cm 3.5 in | 8.89 cm 4 in | 10.16 cm Height at Opening 2.75 in | 6.99 cm 3 in | 7.62 cm 3.25 in | 8.26 cm 3.75 in | 9.53 cm Height at Toe 1.25 in | 3.18 cm 1.25 in | 3.18 cm 1.25 in | 3.18 cm 1.5 in | 3.81 cm Overall Length 22.5 in | 57.15 cm 23.5 in | 59.69 cm 26.5 in | 67.31 cm 26.5 in | 67.31 cm Max Blade Width 8 in | 20.32 cm 9 in | 22.86 cm 9 in | 22.86 cm 9.25 in| 23.5 cm SIZE CHART Fin Size Men&';s US Size Women&';s US Size Small Up to 6 Up to 7 Medium 7 - 9 8 - 10 Large 10 - 12 11 - 13 X-Large 13 and Up 14 and Up Note: Sizing is based off of normal wet suit boots. For oversized drysuit boots ("rock boots"), we recommend going up one size.