Synthetic Insulation

OMM's new, updated Rotor Vest is the ideal insulating layer, providing a phenomenal amount of warmth in a durable, lightweight package that proved to be very versatile, even when wet.  OMM says The...

Lightweight, packable, and versatile—this vest excels across various outdoor activities. Montbell says:  Lightweight, packable and highly stretchy materials provide excellent breathability and...

The Mountain Arete LB Vest is one of the lightest weight synthetic vests on the market that is dual-sided for both providing insulation and as a breathable layer for more rigorous activities...

A reversible insulated vest that lets you choose between more wind protection or more breathability. Berghaus says:  Lightweight reversible vest with synthetic Hydroloft Elite insulation and wind...

Ultralight, synthetic insulated trousers that offer warmth and comfort in wet or cold conditions, ideal for cold-weather adventures. Enlightened Equipment says:  The Men's Torrid Pants offer...

We're working out what we think - we'll add our view here!  Mountain Equipment says:  Fast-moving warmth for the mountains. Aerious insulation meets Octayarn backer in a breathable, high-output vest...

A lightweight, efficient mid-layer that balances warmth, breathability and freedom of movement for year-round mountain use. Mammut says:  Delivering the warmth and comfort you need for a wide range...

The Rab Xenair Insulated Vest is a versatile, lightweight vest designed for outdoor activities. It provides essential warmth and breathability without sacrificing mobility or bulk. The vest also has...

UOG TOP PICK: Light, breathable, and mountain-ready, the Mammut Eiger Nordwand IN Flex Air Vest combines Alpha insulation with an air-permeable shell, making it a top choice for fast-moving alpine...

An ultralight, breathable insulated layer designed for fast, cold-weather movement where warmth and mobility must work in balance. Montane says:  Protecting against biting winter winds, the...

Breathable core warmth for fast-paced days in the hills. Patagonia says:  The Nano-Air® Light Vest was made to be worn for the entirety of your aerobic, start-stop mountain activities, so you’re...

Patagonia’s Nano-Air Ultralight Pullover is built for speed and breathability. It keeps you warm without overheating, but don’t expect hand pockets. Patagonia says:  Dial in your existing layering...

UOG TOP PICK - Nano-Air Light Vest Patagonia have combined there highly popular R1 fleece with a wind and water resistant layer in orer to create a vest that is perfect for so many outdoor...

The Rotor smock is a super lightweight layer that is the perfect companion on a mountain marathon, run or even as a mid- layer on a hike or climbing trip. Its packability and weight make it an...

A reversible insulated layer that gives you two noticeably different ways to wear it. Berghaus says:  Synthetic Hydroloft Elite will keep you warm on the move in a very lightweight, reversible and...

UOG TOP PICK --Torrid Insulated Jacket, The Torrid Insulated Jackets warmth to weight ratio is unmatched by any other synthetic I have used; it packs down incredibly small, shields you from the wind,...

Warm, light and built to last. A proven mid-layer that remains one of the most versatile pieces in Patagonia’s range. Patagonia says:  We built the Nano Puff® Vest for climbers who needed a...

UOG TOP PICK -Warm, compressible, and adaptable, the Mountain Equipment Oreus Vest is an excellent addition for those needing a reliable insulating layer that handles both alpine challenges and...

UOG TOP PICK- U.L Thermawrap Insulated Jacket’s impressive warmth-to-weight ratio, small pack size and high-quality craftsmanship really make this jacket stand out, and that’s why we have singled it...

Built for speed and breathability, Patagonia’s Nano-Air Ultralight Hoody keeps you warm without overheating—just don’t expect hand pockets. Patagonia says:  For cool, high-output days when you need...

Built for speed and breathability, Patagonia’s Nano-Air Ultralight Hoody keeps you warm without overheating—just don’t expect hand pockets. Patagonia says:  For cool, high-output days when you need...

UOG TOP PICK – The new incarnation of this outdoor classic, has been redesigned for an improved fit, coupled this with its Ultralight design and its Revolutionary lightweight PlumaFill insulation and...

The Patagonia Nano-Air Light Bottoms are well-designed midlayer pants for active adventurers. They provide warmth, breathability, and stretch for high-intensity activities in cold weather. The...

UOG TOP PICK --Torrid Insulated Jacket, The Torrid Insulated Jackets warmth to weight ratio is unmatched by any other synthetic I have used; it packs down incredibly small, shields you from the wind,...

UOG TOP PICK: Light, warm, and breathable, this jacket excels at keeping you comfortable during high-output activities.A top pick for year-round use Montane says:  This durable yet technical jacket...

A lightweight synthetic jacket with reliable warmth and a surprisingly refined feature set. Good for walkers who want simplicity without losing useful details. Liteway says:  A completely new...

The Rab Cirrus Flex Insulated Vest offers lightweight warmth and breathability, making it an essential piece for versatile layering on any adventure. Rab says:  Lightweight, packable insulated vest...

UOG TOP PICK – The new incarnation of this outdoor classic, has been redesigned for an improved fit, coupled this with its Ultralight design and its Revolutionary lightweight PlumaFill insulation and...

UOG TOP PICK - Nano-Air Light Hybrid Jacket Patagonia have combined there highly popular R1 fleece with a wind and water resistant layer in orer to create a jacket that is perfect for so many outdoor...

Warm, breathable, and designed for movement, the Fortes Lite Insulated Pants strike a balance between protection and agility for cold, active days in the mountains. Montane says:  Protecting against...

UOG TOP PICK - SuperStrand LT Insulated Hoodie The SuperStrand LT Hoodie is a very lightweight insulated layer that for the price makes it ideal for those wanting a good packable midlayer or a warm...

UOG TOP PICK - SuperStrand LT Insulated Hoodie The SuperStrand LT Hoodie is a very lightweight insulated layer that for the price makes it ideal for those wanting a good packable midlayer or a warm...

A solid choice for mixed conditions where regulating temperature matters, a put-on and leave-on layer. Rab says:  Eliminate the need to stop and change layers as you close in on the summit, with...

Patagonia's DAS Light Pants offer warmth and packability for mountaineers. The PlumaFill synthetic insulation mimics a down loft while maintaining warmth when wet. The pants have a weather-resistant...

The Rab Cirrus Insulated Vest is ideal for hikers, offering warmth and versatility year-round. Refined with improved PrimaLoft® Silver RISE insulation, it's lightweight and durable, made from...

The Rab Xenair Alpine Light jacket is a lightweight, insulated jacket with strategically mapped insulation for activities like hiking and climbing. It's warm, breathable, and packable, making it...

A refined mid-layer for active mountain use, offering a precise balance of warmth, stretch and breathability. Mammut says:  Delivering the warmth and comfort you need for a wide range of mountain...

The Switch Pro Hooded Jacket is a mid-layer for fast-moving hikers, alpinists, and climbers. It combines warmth, breathability, and comfort with Octayarn warp-knit insulation, 20D RS nylon outer...

A well-balanced synthetic jacket that manages warmth, breathability and movement with impressive precision. Montane says:  Protecting against biting winter winds, the lightweight Nylon ripstop outer...

The Montbell Light Shell Hooded Jacket offers wind and water resistance, warmth, and moisture management with CLIMAPLUS MESH lining. Its 2-way stretch fabric and athletic silhouette ensure mobility...

Lightweight active insulation that prioritises breathability and freedom of movement. Patagonia says:  The Nano-Air® Light Jacket was made to be worn for the entirety of your aerobic, start-stop...

Lightweight active insulation with added head coverage for cold, stop-start mountain days. Patagonia says:  The Nano-Air® Light Hoody was made to be worn for the entirety of your aerobic, start-stop...

UOG TOP PICK:  Top Pick for Alpine Versatility: The Patagonia DAS Light Insulated Hoody combines lightweight warmth, weather resistance, and a streamlined design, making it the perfect companion for...

The Deviator Insulated Hoody is a breathable, windproof, and insulated mid-layer that is suitable for winter pursuits such as hiking, biking, and climbing. It is made with a windproof outer shell, a...

The Deviator Insulated Hoody is a breathable, windproof, and insulated mid-layer that is suitable for winter pursuits such as hiking, biking, and climbing. It is made with a windproof outer shell, a...

UOG TOP PICK: Proven synthetic performance with dependable warmth and durability, the Patagonia Nano Puff remains a benchmark layer for cold, unpredictable weather. Patagonia says:  We built the Nano...

UOG TOP PICK: Proven synthetic performance with dependable warmth and durability, the Patagonia Nano Puff remains a benchmark layer for cold, unpredictable weather. Patagonia says:  We built the Nano...

We're working out what we think - we'll add our view here!  Mountain Equipment says:  Packable warmth meets precision fit. With 40g Aerious insulation and helmet compatible hood, this layer punches...

Light, warm and practical, the Nebitron Pro focuses on core insulation while keeping movement completely unrestricted. Rab says:  Synthetic insulated vest offering instant core warmth in cold, damp...

A highly breathable active-insulation layer for cold, technical mountain use. Montane says:  For both highly aerobic and start/stop activities during technical mountaineering pursuits, this adaptable...

A streamlined hybrid layer that balances warmth, breathability and movement for fast days on the hill. Montane says:  The ultimate lightweight thermal regulator, Primaloft Gold Active Vent insulation...

UOG TOP PICK: Lightweight, breathable, and versatile, the Outdoor Research Vesper Insulated Jacket delivers reliable warmth and freedom of movement for active days in cool, changeable conditions. A...

UOG TOP PICK: Proven synthetic performance with dependable warmth and durability, the Patagonia Nano Puff Hoody remains a benchmark layer for cold, unpredictable weather. Patagonia says:  We built...

UOG TOP PICK: Proven synthetic performance with dependable warmth and durability, the Patagonia Nano Puff Hoody remains a benchmark layer for cold, unpredictable weather. Patagonia says:  We built...

The Rab Cirrus Flex Insulated Jacket combines warmth, breathability, and packability, making it an essential piece for versatile layering in any season. Rab says:  Lightweight, packable insulated...

Berghaus' Mountain Seeker Synthetic Jacket follows the Extrem ideal of offering all that you need and nothing that you don't. A warm, but breathable synthetic jacket that is durable and built to...

We're working out what we think - we'll add our view here!  Mountain Equipment says:  Serious insulation for serious conditions. These full-zip overtrousers use 60g Aerious insulation to deliver...

UOG TOP PICK -The Mountain Equipment Oreus is lightweight, warm, and packable—a stand-out synthetic for alpine enthusiasts and those looking for high-performance, eco-friendly insulation in...

UOG TOP PICK: Warm, waterproof, and impressively light, the OMM Barrage Insulated Shell Jacket blends Primaloft insulation with complete weather protection — a top choice for fast, cold mountain days...

The Mont Guide Hoodie for Men is a lightweight, bulk-free insulating layer perfect for cold/wet conditions. Mont Adventure Equipment says:  The Mont Guide Hoodie is a lightweight, bulk-free...