Challenging traditional boot constructions, Salomon’s Supra BOA 105 W ski boots have been designed to offer women a new standard of perfect fit. Our ExoWrap Construction combined with the BOA Fit System provides a micro-adjustable, precision fit and a targeted wrap around the foot that can easily be adjusted throughout the day. For skiers with a developed technique that are confident carving no matter the difficulty of the slope, the snow conditions, or their speed. A flex rating between 100 and 130 for women, and 110 and 140 for men, ideal for advanced-level skiers and those whose morphology requires more sturdy support. A last width between 100 mm and 101 mm (MP 26. /26.5), considered average, offers greater volume and a more relaxed fit ideal for most skiers. To identify one's preferred last, the foot's width between the first and the fifth metatarsal bone is measured to gather an overview of the skier's natural foot shape and volume.