The Sea to Summit Ultra-Sil Dry Day Pack is a 22 L packable daypack made from 30D siliconised CORDURA nylon with PU-taped seams, built to weigh almost nothing when not in use — 110 g, or about 5 g per liter of capacity. The roll-top main compartment and elasticated compression lacing keep the single-compartment layout weather-resistant, though the highly water-resistant rating and silicone DWR-style coating fall short of a true dry bag's full submersion protection.
There is no internal organization here — no front or side pockets, no hip belt pockets, no hydration compatibility — which is the trade-off for the ultra-low weight and stuff-sack-sized packed volume. A 5 kg max load capacity reflects its role as a light daypack rather than a load hauler; it is not meant to carry camp gear on a multi-day trip.
That makes it a good match for thru-hikers who want a summit pack for side trips without adding meaningful base weight, or travelers who want a packable daypack for town days and errands that stuffs into its own carabiner-clipped sack when not needed.
Specifications
Color
Blue, Orange, Gray
Main Compartment Volume
22 l (5.81 gal)
Total Volume
22 l (5.81 gal)
Weight
110 g (3.9 oz)
Dimensions ( Height x Width x Depth )
48 x 30 x 20 (1.6 x 11.8 x 7.9 ft)
Maximum Load Capacity
5 kg (11.02 lb)
Main Fabric
Ultra-Sil 30D siliconised CORDURA Nylon, PU seam tape
Fabric Type
Cordura
Water Resistance
Highly water-resistant
DWR Coating
Silicone coating
Main Compartment Access
Roll-top
Number of Compartments
1
Front Pocket Count
0
Side Pocket Count
0
Elastic Bungee Cord
✓
Intended Use
Day hiking, Thru-hiking/Ultralight, Travel, Urban/Commute