Shed Rain Windjammer Vented Auto Open Auto Close Compact Umbrella The ShedRain Windjammer features our vented double canopy to provide superior wind resistance. The Auto Open and Auto Close functionality provides ease of use to open and close the umbrella with the push of a button. This compact umbrella opens to a 43" arc perfect for any rain condition, and collapses to 12.5" to fit in any purse or bag. The black electrostatic frame increases the strength of the umbrella and the ergonomic rubber grip handle provides added comfort. ShedRain proudly stands behind its umbrellas with a Lifetime Warranty. We use the finest components in the construction of our umbrellas. All elements of the umbrella are designed to hold up in adverse weather conditions.