Product Size 1 10 10 - 11 10-11 10.5 Litre 11 11 inch 11-13 11/12 12 12-13 12.2 Litre 12.2 Litre Compact 12/14 13 14 15 Litre 16 18 18 Litre 2 2 - 3 2 Litre 2-3 2.5-3.5 20 20 Litre 22 22" 24" 25" 25L Blue 26" 27" 29/32 3 3 Litre 3-5 30 Litre 30" 31-32 32" 32/35 33-34 33" 35L Silver 36" 3XLarge 4 4 - 5 4 inch 4-5 40L 4XLarge 5 5 Litre 5.5 - 6.5 5.5-6.5 5/6 5XLarge 6 6 - OLD MODEL 6-7 7 7 - 8 7 inch 7 Litre 7-8 7/8 70L 8 8-10 8-9 8.5 - 9.5 8.5-9.5 88mm 9 9 inch 9 Litre 9/10 90 Litres 96mm I II III IV Jnr large 1-4 Jnr small 9-13 Junior L 10.5-11.5 Large Large - BLUE Large - X Large Large (44 - 45) Large Short Large/XLarge Long Long 725mm M 7.5-8.5 Mask Snorkel only Medium Medium - BLACK Medium (42 - 43) Medium 453mm Medium/Large Medium/Large - OLD MODEL ML 9-10 Regular S 6-7 Shadow Shadow Mini Small Small - Medium Small 310mm Standard Super V X Large Short X-Large XL (46 - 47) XL 12-13 XL-XXL XS 4.5-5.5 XSmall Xsmall/Small XXLarge XXS xxs/xs XXXSmall 100g 10LRed 5L White 60L 80L ML-L Reg XLarge