Sea to Summit Evac Lightweight Compression Dry Bag

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UOG TOP PICK – For Dry, Compressed Efficiency: With waterproof eVent fabric, even compression, and a no-fuss design, the Sea to Summit eVac Compression Dry Bag keeps gear dry and maintains low pack volume, ideal for organising soft kit on extended trips.

Sea to Summit says: 

Perfect dry compression storage for everything from bikepacking to sea kayaking and beyond. Made from a bluesign-approved recycled 70D nylon waterproof main body fabric and a 70D eVent® waterproof but air-permeable base that allows you to push air out while still keeping your contents dry inside. This means there’s no need for purge valve, making the Evac Compression Dry Bags light and simple. Four compression straps make it easy to evenly compress soft items, while the hypalon non-wicking roll-top closure also keeps the water out. DWR finishes on both fabrics are C0 non-PFC. Simple, rugged and reliable the epitome of durability, versatility, and dry compression.

Our Verdict

The Sea to Summit eVac Compression Dry Bags are a well-thought-out kit that keeps gear dry while helping maximise space in your pack. The air-permeable yet waterproof eVent fabric base allows air to escape as you compress soft items without letting moisture in. This clever design removes the need for a purge valve, keeping the bag light and simple.

Available in five sizes, these dry bags cater to various packing needs. The 5-litre bag (99g) is perfect for smaller essentials like gloves, a lightweight down jacket, or spare socks, keeping them dry and compact inside your pack. Stepping up, the 13-litre version (136g) is ideal for bulkier layers or a lightweight sleeping bag, while the 20-litre size (160g) comfortably fits a full set of insulated clothing. The 35-litre model (200g) offers enough space for a full sleeping system or several days’ worth of kit for longer expeditions.

The roll-top closure creates a secure seal, while the four compression straps ensure even pressure, preventing lumpy, uneven packing. The bag’s lightweight yet durable 70D nylon construction holds up well to regular use.

– Reviewed by Ultralight Outdoor Gear

Features

• Waterproof and air-permeable eVent® fabric base allows air to be pushed out but water can’t get in
• Non-wicking roll-top closure secured with our patented Field Repair Buckle for a reliable seal
• Lightweight, bluesign® APPROVED recycled 70D Nylon main body fabric uses a PFC-free DWR finish
• Robust, waterproof PU-coated 70D recycled Nylon body fabric has a 10,000mm hydrostatic head
• Waterproof seams you can trust double-stitched and tape-sealed
• Eliminate bulging and achieve even compression using the four straps with two ladderlock and two easy-access side-release buckles
• Sturdy, nylon webbing handle on oval base provides a secure grab point
• Light-reflecting white interior coating makes seeing and finding gear easier

Specifications

5 Litre –

• 5 Litre Weighs: 99g
• 5 Litre Dimensions: 16.6 x 14.7 x 31.2 cm

8 Litre –

• 8 Litre Weighs: 113g
• 8 Litre Dimensions: 19.2 x 17.8 x 39.4 cm

13 Litre –

• 13 Litre Weighs: 136g
• 13 Litre Dimensions: 22 x 20.2 x 44.7 cm

20 Litre – 

• 20 Litre Weighs: 160g
• 20 Litre Dimensions: 26.5 x 23.5 x 45.7 cm

35 Litre –

• 35 Litre Weighs: 200g
• 35 Litre Dimensions: 32 x 29.3 x 56 cm

Material & Construction

• Event Waterproof Fabric
• Non-PFAS
• 70D Ultra Sil
• Closure: Non-wicking hypalon roll-top closure with compression straps

Help & advice:

• About Sea to Summit