When it comes to outdoor adventures or everyday errands, having a reliable day pack can make all the difference. A quality day pack should be lightweight, durable, and versatile enough to handle a variety of activities, from hiking and biking to running errands around town. Many outdoor enthusiasts appreciate the convenience of a pack that can be easily stowed away when not in use, allowing for efficient packing and storage without taking up much space.
In this article, we’ll take a closer look at the Sea to Summit Ultra-Sil Ultralight Day Pack, a standout option in the world of lightweight backpacks. With its impressive features and compact design, it’s perfect for anyone needing a practical yet stylish solution for their carrying needs. Let’s dive into the details and explore why this pack might just be the ideal choice for your next adventure!




Key Features and Benefits
The Sea to Summit Ultra-Sil Ultralight Day Pack is designed for those who value portability and functionality. Weighing in at less than three ounces, this day pack is incredibly lightweight, making it easy to carry along on any adventure. With a capacity of 20 liters, it can hold a considerable amount of items despite its small size when packed down, which is comparable to that of a tennis ball.
Constructed from durable and water-resistant 30D siliconized Cordura Nylon, this pack is built to withstand light rain and rough handling. It features a two-way zipper closure for easy access, ergonomic shoulder straps for comfort, and webbing loops that can be used to attach additional gear, such as a bike light. The pack includes an attached stuff sack and a handy aluminum carabiner for convenient storage and transport.

Where to buy
- 20-liter capacity day pack weighs less than three ounces and packs down to the size of a tennis ball
- Made from durable and water-resistant 30D siliconized Cordura Nylon with reinforced bar-tacks
- Two-way zipper closure, ergonomic shoulder straps and webbing loops for attaching a bike light
Who Is This Product Recommended For?
This ultralight day pack is highly recommended for travelers, cyclists, and outdoor enthusiasts who need a compact and versatile carrying solution. It excels in various scenarios, including grocery runs, attending outdoor festivals, or as a supplementary bag during trips. Its lightweight design makes it ideal for those who want to minimize their load while retaining the ability to carry necessary items. Additionally, it serves well as a carry-on bag or a packing organizer within larger bags.

Pros and Cons
- Pros:
- Extremely lightweight and compact, perfect for travel.
- Durable, water-resistant materials offer protection from light rain.
- Versatile use for various activities, from shopping to outdoor adventures.
- Convenient storage options with attached stuff sack and carabiner.
- Cons:
- Not suitable for heavy rain or extensive exposure to water.
- Slightly transparent, which may not suit everyone’s preference.
- Limited capacity for larger gear or extensive outdoor use.
Frequently Asked Questions
What is the weight and capacity of the pack?
The Sea to Summit Ultra-Sil Ultralight Day Pack weighs just 2.5 ounces and has a capacity of 20 liters, making it an excellent choice for those seeking a lightweight carrying option.
Is the pack waterproof or water-resistant?
This pack is made from water-resistant 30D siliconized Cordura Nylon. It can effectively shed light rain but may not keep contents dry during heavy downpours or prolonged exposure to water.
Can this pack be used for hiking or outdoor activities?
How does it compare to other day packs in terms of size and convenience?
In terms of size, the Sea to Summit Ultra-Sil Day Pack is among the most compact options available, easily fitting into a pocket when not in use. It stands out for its convenience due to its ultralight weight and ability to pack down to a small size, making it a top choice for those looking for a portable, easy-to-store day pack.