Question: What kind of shoe sponsored the practice session where Brett Banasiewicz crashed and suffered a head injury? 

<P0-S0> Brett Banasiewicz (born September 26, 1994), nicknamed "Mad Dog", is an American professional BMX rider living in South Bend, Indiana. <P0-S1>  He became a professional BMX rider at the age of 13. <P0-S2>  In the 2010, 2011, and 2012 Brett competed in the BMX park discipline at the X Games finishing 4th, 7th and 4th respectively. <P0-S3>  On August 23, 2012 he crashed in a practice session at the Vans LXVI BMX Invitational at Virginia Beach, Virginia suffering a head injury. <P0-S4>  He spent 15 days in a medically induced coma whilst being treated at Sentara Princess Anne Hospital (Virginia Beach, VA). <SEP> <P1-S0> Vans is an American manufacturer of skateboarding shoes, based in Costa Mesa, California, owned by VF Corporation. <P1-S1>  The company also produces apparel and other products such as T-shirts, hoodies, socks, hats, and backpacks. <P1-S2>  As of August 2013, the brand is also active in other actions sports industry and sponsors surf, snowboarding, BMX, and motocross teams. <P1-S3>  Since 1996, the company has also been the primary sponsor of the annual Vans Warped Tour traveling rock festival. <SEP> <P2-S0> The Twyman–Stokes Teammate of the Year Award is an annual National Basketball Association (NBA) award that recognizes the league's "ideal teammate" who exemplifies "selfless play and commitment and dedication to his team." <P2-S1>  The award is named after Jack Twyman and Maurice Stokes. <P2-S2>  The two played together on the Rochester/Cincinnati Royals from 1955 to 1958 until Stokes' career was cut short after he suffered a head injury from a fall during a game against the Minneapolis Lakers. <P2-S3>  Stokes would later become paralyzed due to post-traumatic encephalopathy; a brain injury that damages the motor-control center. <P2-S4>  Twyman then became Stokes' legal guardian and advocate until Stokes died in 1970. <SEP> <P3-S0> Head injuries in sports of any level (junior, amateur, professional) are the most dangerous and sickening kind of injuries that can occur in sport, and are becoming more common in Australian sport. <P3-S1>  Concussions are the most common side effect of a head injury and are defined as "temporary unconsciousness or confusion and other symptoms caused by a blow to the head." <P3-S2>  A concussion also falls under the category of Traumatic Brain Injury (TBI). <P3-S3>  Especially in contact sports like Australian rules football and Rugby issues with concussions are prevalent, and methods to deal with, prevent and treat concussions are continuously being updated and researched to deal with the issue. <P3-S4>  Concussions pose a serious threat to the patients’ mental and physical health, as well as their playing career, and can result in lasting brain damage especially if left untreated. <P3-S5>  The signs that a player may have a concussion are: loss of consciousness or non-responsiveness, balance problems (unsteadiness on feet, poor co-ordination), a dazed, blank or vacant look and/or confusion and unawareness of their surroundings. <P3-S6>  Of course the signs are relevant only after the player experiences a blow to the head.