Saddle Up With Our Summer Adventure Guide—Shop Now
Home Page

Detail Images

Current Color

SealLine Blocker 5-20L Dry Sack

$16.95 - $26.95

Select Style & Size

  • Navy, 30L
  • Navy, 5L
  • Orange, 2.5L
  • Orange, 5L

Add Protect+ Powered by Extend™

Blocker Dry Sack

You will never forget that first river trip when you got to camp to discover that all your clothes and food had been water-logged. After clothes-lining all your gear and bumming your friend's dinner, you will always remember to bring the Blocker Dry Sack by SeaLine. With sizes designed for either day trips or week-long trips, the tough material with fully welded seams is totally waterproof to protect your clothes and gear. Designed for easy traveling, the sacks are made with a PackTight design in a rectangular shape for space-saving and efficient packing, while the roll-top closure features a wrinkle-free stiffening strip to give you a secure seal.

  • Waterproof sack for keeping gear dry on the water
  • Rugged and resilient material is 100% waterproof
  • Roll-top closure folds over stiffing strip for secure seal
  • Fully welded seams give stronger and more durable protection
  • Rectangular shapes make for more efficient space-saving packing
  • Item #CAS00DE

70D polyurethane coated nylon
5L (305cu in), 10L (610cu in), 15L (915cu in), 20L (1220cu in)
[5L] 3.5 x 6.4 x 11.8in, [10L] 4.3 x 8.2 x 14.1in, [15L] 4.7 x 9.2 x 16.1in, [20L] 5.5 x 10.4 x 18.8in
Claimed Weight
[5L] 1.7oz, [10L] 2.2oz, [15L] 2.7oz, [20L] 3.1oz
Recommended Use
flatwater paddling, river paddling

Tech Specs

What do you think about this product?



SealLine Blocker Waterproof Packing

SealLine® Blocker™ waterproof packing systems sacks are made for backpackers, hikers, and paddlers looking for a fully waterproof, lightweight way to protect and organize their gear and clothing when packing. These dry sacks and compression dry sacks balance durability, versatility, and packing efficiency, enabling adventurers to enjoy all-around use with confidence.