Our Blocker Dry Sack offers top - notch waterproof protection with a simple roll - top closure. It's designed for resourceful adventurers, featuring an efficient - packing shape that helps you neatly organize and safeguard your essential clothing and gear in your pack. The sack is made from versatile 70D polyurethane - coated nylon materials. These are sturdier and more resilient than the ultralight BlockerLite materials, providing reliable waterproof protection for all - around use. The roll - top closure has a wrinkle - free stiffening strip to ensure a tight seal. The fully welded seams make the construction stronger and more durable compared to sewn - and - taped seams. The PackTight™ packing system gives the sacks flat - sided, rectangular shapes that fit together snugly, packing 20% more efficiently than rounded sacks for easy and space - saving organization. Specifications: 5 Ltr, Weight 0.05kg, Size 9x16.5x30 cm; 10 Ltr, 0.06kg, 11x21x36 cm; 15 Ltr, 0.07kg, 12x23.5x41 cm; 20 Ltr, 0.09kg, 14x26.5x48 cm; 30 Ltr, 0.10kg, 16x30.5x58 cm.















Using your SealLine Blocker Dry Sack is easy. First, put your clothes or gear inside the sack. Then, roll down the top of the sack a few times and make sure the stiffening strip is smooth. Finally, secure the roll - top to create a waterproof seal. When it comes to maintenance, simply rinse the sack with fresh water after use, especially if it's been in saltwater. Hang it up to dry in a well - ventilated area. Avoid using harsh chemicals or abrasive cleaners as they can damage the materials. Store the sack in a cool, dry place when not in use. Also, be careful not to overstuff the sack as it may affect the waterproof seal and the overall durability of the sack.