If the call of high mountain streams and the path less traveled ring true for you, our 42 oz. FLYWEIGHT® Wading Boot - Vibram® Sole offers an incredibly lightweight design to help you answer the high-mountain call. The low-profile design maintains full wading boot functionality and the Vibram Idrogrip outsole sticks to wet, mossy rocks, and is reinforced for reliable stud retention. Low-profile, lightweight synthetic boot upper Welded TPU film in high abrasion zones for durability Speed lace hooks & lace-toe closure High cushion dual-density EVA midsole for comfort Stud-compatible 4.5 mm Vibram® Idrogrip rubber outsole Cleat Compatibility: click 'View size info' above. FABRIC TECH: Vibram® Idrogrip rubber outsoleWEIGHT: 42 oz. (1190 g) for a pair in size 11ITEM #: PG-12631 Size Chart To allow proper room for the neoprene stockingfoot, find your regular shoe size in the right-hand columns and order the corresponding Simms Boot in the first column. This will typically be one size up from your normal shoe size for men and one size down for women (ie: a women's USA size 8 would take a men's boot size 7).(Simms Boot size 5 will fit a Youth Size 4, etc.) Simms WadingBoot Size USASize EuroSize UKSize CMSize 5** 4 37 3 22 6** 5 38 4 23 7 6 39 5 24 8 7 40 6 25 9 8 41 7 26 10 9 42 8 27 11 10 43 9 28 12 11 44 10 29 13 12 45 11 30 14 13 46 12 31 15** 14 47 13 32 16** 15 48 14 33 Not all styles available in all sizes; please see individual boot for size specifics** Freestone Boot - Streamtread only