Inside and out, the kids&'; Burton Zipline BOAA(R) Snowboard Boots are a kid-tested, parent-approved winner for maximum fun and fuss-free function. No shortcuts here, just real-deal performance and features to get kids ahead, from the customized fit and warmth of a heat-moldable Imprint liner to the weightless feel and cushioning of the DynoLITE outsole. Add the easy to use and mitten-friendly adjustability of the BOAA(R) Fit System, and you get a boot that kids will actually want to wear all day. Durable synthetic leather backstay Soft flexing upper shell materials for ultimate learn-to-ride comfort Snow-proof internal gusset completely seals the lower zone of the boot, keeping your feet warm and dry BOAA(R) Fit System uses an inner spool to route the laces for a snug fit and easy lace adjustment with the simple twist of a dial Sleeping bag reflective foil underfoot reflects heat back to the foot, improving both warmth and comfort in cold conditions Youth Imprint heat-moldable liner with integrated lacing, lace lock, stretchy Feetbelt strap tightens down the liner DynoLITE outsole offers superior cushioning, improved board feel, and consistent support in a 20% lighter weight construction that can withstand repeated impacts