Whitmor's improved Spacemaker vacuum bags have a durable multi-layer construction for maximum use and reuse. The zipper slider has been improved to slider prevent it from sliding off when sealing the bag....

Whitmor's improved Spacemaker vacuum bags have a durable multi-layer construction for maximum use and reuse. The zipper slider has been improved to slider prevent it from sliding off when sealing the bag....

Whitmor's new valve design has no cap. Other bags rely upon a cap to be tightly sealed to keep air out but air can still seep through the cap causing the bag to deflate over time....

Whitmor's new valve design has no cap. Other bags rely upon a cap to be tightly sealed to keep air out but air can still seep through the cap causing the bag to deflate overtime....

Whitmor's new valve design has no cap. Other bags rely upon a cap to be tightly sealed to keep air out but air can still seep through the cap causing the bag to deflate over time....