UNIVERSAL FIT: include BOB stroller THREE SEASONS WEATHER RESISTANT PREMIUM QUALITY FOOTMUFF: water, snow , wind proof wearable exterior and soft premium fleece lining, which protects baby from wind, wain and snow, keep baby comfortable warm. ANTI-SLIP MATERIAL: stays in place even with a strong movement. The complete back of the toddler bunting bag is equipped with an anti-slip material . Additionally it can be attached to the baby carriage with 4 straps in the convenient pocket. 100% SAFE: Equipped with unique harness design for a universal fit., and equipped with reflective strip to be seen better in dark. UNIQUE DESIGN-BETTER TEMPERATURE CONTROL&USE LONGER FOR BABY GROWS-THREE WAY ZIPPERS: middle zipper, easy for baby in &out. Two bottom zippers, designed for 4 inch length extension temperature control purpose. More practical features wait for you to discover