The Rollerblade Macroblade 90 BOA women's inline skates are high performance skates for fitness enthusiasts who like a good lateral support for stability while seeking enhanced control during skating. Those women's skates feature a Footboard Sizer insole that provides two sizes in one skate. It enables skaters to insert the Footboard under the insole to create a snugger, more performance fit or remove it to accommodate the bigger size for more room in their skates. The liner and upper provide sock like comfort and cushion. The 11” Twinblade aluminum frame adds power transfer and durability and has the option of skating with a 4 X90 mm or 3 X 100 mm set up (sold separately).