The large-capacity chamber fills with a single light breath, and the reinforced stay-open collar folds over to lock in air before transferring it to the pad. A regular air pad fills completely in just two or three pumps, which keeps moisture from breath out of the pad's interior where it can degrade insulation over time. The Vortex connects seamlessly with NEMO's Laylow multi-valve for precise inflation control, letting you dial in firmness without over or under-inflating. The 20D PU polyester fabric is laminated and embossed with welded seams for durability that holds up to repeated use across many seasons of trips.

When you're done, it rolls down to the size of a marker and adds virtually nothing to your pack weight at 60 grams. It's included with most NEMO sleeping pads, but worth picking up as a standalone if yours didn't come with one or if you want a spare for a group kit. Backed by NEMO's Lifetime Warranty.

• Weight: 2 oz / 60g
• Packed size: 7.5 x 2.0 x 0.5 in / 19 x 4.5 x 1.5 cm
• Dimensions: 18 x 30 in / 45 x 76 cm
• Fabric: 20D laminated PU polyester with welded seams
• Collar: Reinforced stay-open design
• Compatible valve: NEMO Laylow multi-valve
• Warranty: NEMO Lifetime Warranty