Outdoor Research DRYCOMP SUMMIT SACK™ Water Bottles & Treatments This model has the advantage

This model has the advantage of large openings for excellent ventilation

Strap version is for non-technical footwear

Lightweight for their strength and size

Adapted to a broad range of rope diameters:

laminated with food-grade polyurethane

Outdoor Research DRYCOMP SUMMIT SACK™ Water Bottles & Treatments This model has the advantageA STREAMLINED, WATERPROOF ALPINE DAYPACK This ultralight day pack has all the features needed for a fast and light summit push. An airpurge strip combined with straps provides maximum compression. Sewn and taped seams, and strategically placed reinforced fabric boost strength and waterproofness. Mesh side pockets accommodate water bottles, and gear loops secure ice tools. FEATURES Fabric Performance: Waterproof, Fully Seam Taped, Durable, Lightweight