NEMO Equipment Vortex Pump Sack Lumen — lightweight 20D inflator, Laylow-compatible rapid inflation

The NEMO Equipment Vortex Pump Sack (Lumen) is a lightweight, high-capacity inflator that quickly and efficiently fills compatible sleeping pads without heavy blowing or bulky pumps.

Designed for minimalist backpacking and car-camping alike, the Vortex Pump Sack eliminates breath inflation and reduces moisture buildup inside your pad. Its reinforced stay-open collar and generous internal volume let you move air rapidly from the sack into Laylow-compatible pads. Built from durable laminated 20D fabric with welded seams, it compresses down to marker-sized convenience for easy storage in your sleep system or pack pocket.

How does the Vortex Pump Sack speed up pad inflation?

The large-capacity chamber captures a big volume of air with only a light breath, and the wide mouth stays open for straightforward filling. Once the sack is charged, folding the reinforced collar seals the air so you can transfer it in one smooth motion. The sack also interfaces cleanly with Laylow multivalve systems for controlled, efficient inflation.

• Large internal volume reduces number of fills needed
• Stay-open collar simplifies scooping and sealing
• Direct Laylow multivalve connection enables rapid, precise transfer
• Minimal breath required lowers moisture into pad

What materials and construction make it rugged yet packable?

Built from laminated 20D fabric, the Vortex Pump Sack balances abrasion resistance and light weight. Welded seams prevent leaks and reinforce durability without adding stitching bulk. When empty, the sack rolls to the size of a marker for minimal footprint in a pack or sleep kit.

• 20D laminated fabric resists punctures and wear
• Welded seams for reliable air retention
• Compact roll-up form factor for easy storage

How does it connect to sleeping pads and valves?

The sack is engineered to mate seamlessly with Laylow multivalve systems, ensuring a snug connection that prevents air loss during transfer. The opening and collar design let you seal the sack quickly, then open the valve on your pad for precise inflation volume. This makes it suitable for pads that require measured air or repeatable firmness.

• Designed for Laylow multivalve compatibility
• Secure seal prevents mid-transfer air escape
• Allows fine control of pad firmness during inflation

What everyday advantages will I notice using this pump sack?

Expect faster setup at camp, less dampness inside your pad, and less effort overall compared with mouth inflation. Because it’s lightweight and compressible, you can keep it in your sleep sack or pack without significant weight penalty. The result is a cleaner, more consistent inflation experience at lower exertion.

• Speeds camp setup with fewer inflation cycles
• Reduces moisture transfer from breath to pad interior
• Packs down extremely small for ultralight systems

Who is this for? The NEMO Vortex Pump Sack (Lumen) suits backpackers, bikepackers, and car-campers who want a reliable, quick way to inflate Laylow-compatible sleeping pads without bulky pumps or repeated mouth inflation. It’s ideal for anyone prioritizing low weight, compact gear, and reduced moisture inside sleeping pads, while still needing durable construction for repeated outdoor use.