Top Sun Mountain Deals for September 2025

Introducing the Colter II Vest, designed for active individuals. With insulated panels for core warmth and 37.5® insulation for a weight-to-warmth ratio like no other, this packable vest ensures comfort and flexibility with 4-way stretch sides. Say goodbye to bulky layers and hello to your new go-to vest. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible. 37.5 Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

Introducing the Colter II Vest, designed for active individuals. With insulated panels for core warmth and 37.5® insulation for a weight-to-warmth ratio like no other, this packable vest ensures comfort and flexibility with 4-way stretch sides. Say goodbye to bulky layers and hello to your new go-to vest. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible. 37.5 Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

The new Horizon Vest is warm without being bulky. This vest is ultralight and insulated with 37.5® fill, which has an extreme weight-to-warmth ratio. The Horizon combines a windproof, insulated shell with side panels that stretch for a comfortable fit and freedom of movement. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

The new Horizon Vest is warm without being bulky. This vest is ultralight and insulated with 37.5® fill, which has an extreme weight-to-warmth ratio. The Horizon combines a windproof, insulated shell with side panels that stretch for a comfortable fit and freedom of movement. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

The new Horizon Vest is warm without being bulky. This vest is ultralight and insulated with 37.5® fill, which has an extreme weight-to-warmth ratio. The Horizon combines a windproof, insulated shell with side panels that stretch for a comfortable fit and freedom of movement. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

The new Horizon Vest is warm without being bulky. This vest is ultralight and insulated with 37.5® fill, which has an extreme weight-to-warmth ratio. The Horizon combines a windproof, insulated shell with side panels that stretch for a comfortable fit and freedom of movement. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

The Headwall Vest is the ultimate lifestyle layering piece. Constructed with a single-layer fabric featuring a sweater knit face and brushed fleece interior, it provides both comfort and style. With added protection from the wind thanks to the front liner, this timeless vest is the perfect addition to any wardrobe.

The Headwall Vest is the ultimate lifestyle layering piece. Constructed with a single-layer fabric featuring a sweater knit face and brushed fleece interior, it provides both comfort and style. With added protection from the wind thanks to the front liner, this timeless vest is the perfect addition to any wardrobe.

Powered by 37.5 insulation, the Granite Reversible Vest is packable and ultralight. The key feature of 37.5 insulation is its ability to make you comfortable, which ultimately helps you perform better. When you are cold, it warms you, when warm it cools you. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

Powered by 37.5 insulation, the Granite Reversible Vest is packable and ultralight. The key feature of 37.5 insulation is its ability to make you comfortable, which ultimately helps you perform better. When you are cold, it warms you, when warm it cools you. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

Powered by 37.5 insulation, the Granite Reversible Vest is packable and ultralight. The key feature of 37.5 insulation is its ability to make you comfortable, which ultimately helps you perform better. When you are cold, it warms you, when warm it cools you. 37.5® technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best. Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%. Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible.

Granite is not just another puffy. The Granite has sustainable 37.5® sixty-gram insulation which works to maintain an ideal core temperature, enabling you to perform better, longer. 37.5 allows you to wear a puffy without overheating in moderate conditions. Ultimately, Granite is a lightweight technical piece that keeps you comfortable in a wide range of conditions.

Granite is not just another puffy. The Granite has sustainable 37.5® sixty-gram insulation which works to maintain an ideal core temperature, enabling you to perform better, longer. 37.5 allows you to wear a puffy without overheating in moderate conditions. Ultimately, Granite is a lightweight technical piece that keeps you comfortable in a wide range of conditions.

Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible. Like the AT Hybrid Vest, the new Gradient Vest has full-length, windproof panels to keep your core warm and stretch side panels for range of motion and comfort. 37.5® insulation is chemical-free and has an extreme weight-to-warmth ratio. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible. Like the AT Hybrid Vest, the new Gradient Vest has full-length, windproof panels to keep your core warm and stretch side panels for range of motion and comfort. 37.5® insulation is chemical-free and has an extreme weight-to-warmth ratio. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible. Like the AT Hybrid Vest, the new Gradient Vest has full-length, windproof panels to keep your core warm and stretch side panels for range of motion and comfort. 37.5® insulation is chemical-free and has an extreme weight-to-warmth ratio. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

Whether you’re training, competing, or recovering, your performance depends on staying in your comfort zone as long as possible. Like the AT Hybrid Vest, the new Gradient Vest has full-length, windproof panels to keep your core warm and stretch side panels for range of motion and comfort. 37.5® insulation is chemical-free and has an extreme weight-to-warmth ratio. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

The Colter Vest has insulated panels to keep your core warm and side panels with 4-way stretch for range of motion. 37.5® insulation provides an extreme weight-to-warmth ratio and keeps you from overheating in moderate conditions. This packable, ultra-lightweight vest from Sun Mountain will soon become your go-to layering piece. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

The Colter Vest has insulated panels to keep your core warm and side panels with 4-way stretch for range of motion. 37.5® insulation provides an extreme weight-to-warmth ratio and keeps you from overheating in moderate conditions. This packable, ultra-lightweight vest from Sun Mountain will soon become your go-to layering piece. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

The Colter Vest has insulated panels to keep your core warm and side panels with 4-way stretch for range of motion. 37.5® insulation provides an extreme weight-to-warmth ratio and keeps you from overheating in moderate conditions. This packable, ultra-lightweight vest from Sun Mountain will soon become your go-to layering piece. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.

The Colter Vest has insulated panels to keep your core warm and side panels with 4-way stretch for range of motion. 37.5® insulation provides an extreme weight-to-warmth ratio and keeps you from overheating in moderate conditions. This packable, ultra-lightweight vest from Sun Mountain will soon become your go-to layering piece. Performance clothing powered by 37.5® Technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so that you can perform your best.Climate control clothing with 37.5® Technology has been proven to decrease the rate of core temperature buildup, increasing athletic performance by up to 26%.