Fleece COMPATIBLE WITH: Universal fit designed for use with all UPPAbaby strollers. ULTIMATE PROTECTION: The CozyHandmuffs provide the ultimate protection for your hands while conveniently remaining attached to your stroller handlebar when you need to tend to your little one. SUBSTANTIAL WARMTH: Soft, cozy fleece lining provides substantial warmth against the elements, while comfortably fitting hands and jacket sleeves of various sizes. EASY TO CLEAN: Machine washable for ease and convenience.