the best of the best. the infuse stands for uncompromising performance. the pursuit of progress has always been at the heart of the development of this boat. this flagship model has been reworked and re-inspired by arthur longo and is packed with top-notch features. the infuse will redefine your expectations of an all-mountain performance boot.outer bootthe flex control system allows you to adjust the stiffness of the tongue to your exact preferences. two rods made of high-rebound hytrel® material can be inserted on the inside of the tongue for this purpose. the v3 ultimatewaffle outsole combines vans' best technology with the most versatility. perfect for challenging landings to side climbing steep passages in the backcountry.linerthe v3 ultracush with tnf flashdry liner is a heat moldable liner and features an ultracush inner layer for premium cushioning. the north face's flashdry material keeps your feet dry and the reworked x-cage design provides excellent heel support. the v3 popcush footbed comes with a top layer of ortholite® foam and an improved, 3d-molded, anatomical shape. the nylex top layer with airflow perforations ensures a comfortable climate in the boot.lacing systemthe hybrid boa® system gives you the familiar feel of traditional lacing combined with the super fast and secure performance of boa lacing. the connected boa® system focuses on the critical flex zone of the boot, providing bombproof heel hold.