Find practical information to help you choose, use and care for your outdoor clothing and equipment.
From size guides and washing instructions to layering advice, delivery information and detailed outdoor guides, our Help & Advice centre brings together useful information from the Sub Zero team and more than 50 years of experience in performance outdoor clothing.
Product Help & Information
Size Guides
Find the correct size and measurements for Sub Zero clothing and selected products from other brands.
View size guides →Washing & Care
Find washing, cleaning and care instructions to help look after your clothing and outdoor equipment.
Washing & care guides →Delivery Information
UK and international delivery options, charges, restrictions and dispatch information.
Delivery information →Returns & Exchanges
Information about returns, exchanges, refunds and what to do if something is faulty or incorrect.
Returns information →Clothing & Layering Advice
The Outdoor Layering System
Learn how base layers, insulating mid layers and outer layers work together to keep you comfortable in changing conditions.
Read guide →Base Layer Buying Guide
Learn how base layers work and what to consider when choosing the right thermal or performance base layer for your activity.
Read guide →What to Wear for Different Outdoor Activities
Practical clothing advice for walking, running, cycling, camping, skiing, climbing and other outdoor activities.
Read guide →Outdoor Hat & Headwear Buying Guide
Choose the right hat, balaclava or other headwear for different temperatures, weather conditions and activities.
Read guide →Outdoor Gloves & Mittens Buying Guide
Understand glove types, insulation, waterproofing, fit and layering to help keep your hands protected outdoors.
Read guide →Walking & Outdoor Socks Buying Guide
Learn about sock materials, cushioning, fit, liner socks and choosing suitable socks for different outdoor activities.
Read guide →Camping & Outdoor Equipment Advice
Sleeping Bag Buying Guide
Understand temperature ratings, insulation types, shapes and other features to help choose the right sleeping bag.
Read guide →Sleeping Mat Buying Guide
Learn about sleeping mat types, insulation, R-values, packed size and choosing the right mat for camping and backpacking.
Read guide →Camping Stove Buying Guide
Compare camping stove types, fuels and features to find a suitable cooking system for your outdoor adventures.
Read guide →Emergency Shelters
Understand survival bags, tarps, bothy bags and bivi bags, including where each type of emergency shelter is most useful.
Read guide →Tent Repair & Maintenance
Practical advice for looking after your tent, dealing with common problems and making repairs that can extend its useful life.
Read guide →Travel, Safety & Protection
Staying Safe in the Sun
Practical advice for protecting yourself from the sun when walking, travelling, camping and spending time outdoors.
Read guide →Guide to Insect Repellents
Understand the different types of insect repellent and how to choose suitable protection for travel and outdoor activities.
Read guide →Water Purification for Campers & Hikers
Learn about the different ways drinking water can be treated when camping, hiking, backpacking or travelling.
Read guide →Finding Water When Backpacking
Understand natural water sources, the potential risks and why water collected outdoors may need treating before drinking.
Read guide →Choosing the Right Mosquito Net
Learn about mosquito net types, materials and features to help choose suitable protection for travel, camping and sleeping.
Read guide →Tick Safety & Prevention
Practical advice on reducing the risk of tick bites when walking, camping or spending time outdoors.
Read guide →Technical Knowledge
Sub Zero Performance Fabrics & Technology
Explore the fabrics, fibre blends, knitting techniques and specialist treatments used across Sub Zero performance clothing.
Explore our fabrics →Outdoor Clothing & Fabric Glossary
Understand technical terms including wicking, GSM, hydrophilic treatments, fabric construction, fibres and layering terminology.
View glossary →