Ultra-lightweight, just over 7 lbs. Seriously protective, with Aeroflex foam that is resilient and minimizes force transferred to baby by absorbing and diffusing the energy. Adjustable headrest. No re-thread 5-point adjustable harness. Merino wool insert, exclusive to Bugaboo for optimal climate control and temperature regulation of baby. Sun canopy features an extendable Smart Shade, mesh peek-a-boo window, and UPF 50+ protection. Magnetic buckle holder. Ergonomic carry handle. 4-position recline base with clear guides for use as baby grows. Recline base features locking steel stability leg for improved vehicle fit, open belt path for easier installation, and a 4-position recline in the base. Belt path for rides without the use of a base. Compatible only with Bugaboo strollers: Donkey, Fox, Butterfly, Lynx, Bee, Ant, and Cameleon 3/3+*. Removable and washable Oeko-Tex certified fabrics. Good Housekeeping Parenting Award Winner. Meets security standard FMVSS 213. 2-year warranty.