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Chronic Fatigue Syndrome

Woman sitting on a couch in a living room, holding her neck and shoulders experiencing neck pain.

Chronic Fatigue Syndrome, also known as Myalgic Encephalomyelitis (ME/CFS), is a complex, long-term condition that goes far beyond feeling “tired.” It causes persistent, overwhelming fatigue that isn’t relieved by rest and can make everyday activities like work, family time, and even simple tasks feel exhausting. Many people develop ME/CFS after an illness, and symptoms may include unrefreshing sleep, brain fog, dizziness when standing, and post-exertional malaise (PEM), a worsening of symptoms after even small amounts of physical or mental effort.

There is currently no single cure, so care focuses on managing symptoms, supporting the body, and carefully pacing activity to help prevent energy crashes and maintain quality of life.

Woman in a black and pink outfit standing in a blurred indoor setting

"I have Chronic Fatigue Syndrome and it causes me to not be able to control my body temperature or handle the heat. The Kool Max vest has been a big help. It really makes a difference when I go shopping or run errands. It gives me peace of mind. Thank you!" - Deborah in Lorton, VA

The information on this site is not intended or implied to be a substitute for professional medical advice, diagnosis or treatment.  Please consult a licensed healthcare practitioner before using any hot/cold therapy or body cooling product for a medical condition.

The following cold therapy products may be helpful

Woman wearing a black Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants.
Woman wearing a black Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants.
Woman wearing a blue Adjustable Zipper Cooling Vest with Kool Max® packs in a bright living room with plants.
Woman wearing a gray Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants in the background.
Woman wearing a khaki Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants in the background.
Woman wearing a black Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants.
Woman wearing a black Adjustable Zipper Cooling Vest with Cool58® Packs in a bright living room with plants.

Adjustable Zipper Cooling Vest

From $120.00
Woman wearing a black Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants.
A woman with purple hair is wearing a navy blue waist Adjustable Zipper Cooling Vest in nylon in a brightly lit living room setting.
A smiling young man wearing a black adjustable cooling vest over a bright blue t-shirt, standing in a brightly lit living room with plants and a window in the background.
A smiling young man wearing a black adjustable cooling vest over a bright blue t-shirt, standing in a brightly lit living room with plants and a window in the background.
A smiling young woman with curly brown hair stands indoors wearing a bright blue adjustable cooling zip-front vest over a black short-sleeve top. The photo is taken in a softly lit room with plants and a window in the background.
Woman wearing a gray Adjustable Zipper Cooling Vest with Kool Max® Packs in a bright living room with plants in the background.
A smiling young man wearing a beige adjustable cooling vest over a light olive green t-shirt, standing in a brightly lit living room with plants and a window in the background.
A smiling woman with curly brown hair wearing a light pink adjustable cooling vest over a light blue t-shirt, standing in a brightly lit room with plants and a window in the background.
A smiling young man wearing a black adjustable cooling vest over a bright blue t-shirt, standing in a brightly lit living room with plants and a window in the background.
A smiling young woman with curly brown hair stands indoors wearing a bright blue adjustable cooling zip-front vest over a black short-sleeve top. The photo is taken in a softly lit room with plants and a window in the background.

Cool Teens™ Unisex Adjustable Zipper Cooling Vest with Cool58® Phase Change Packs

From $120.00
A smiling young man wearing a black adjustable cooling vest over a bright blue t-shirt, standing in a brightly lit living room with plants and a window in the background.
A smiling young woman with long curly brown hair stands indoors wearing a royal blue adjustable cooling zippered vest over a black short-sleeve top. The photo is taken in a softly lit room with plants and a window in the background.
A smiling young man standing indoors wearing a black fashion cooling zip-front vest over a blue and black plaid button-down shirt, with bright yellow pants. The background shows a softly blurred living room with plants, a window, and a sofa.
A smiling young man standing indoors wearing a black fashion cooling zip-front vest over a blue and black plaid button-down shirt, with bright yellow pants. The background shows a softly blurred living room with plants, a window, and a sofa.

Cool Teens™ Guys' Fashion Cooling Vest with Cool58® Packs

From $165.00
A smiling woman with curly brown hair stands indoors wearing a sleeveless khaki fashion cooling vest with a black short-sleeve layer underneath, paired with dark blue jeans. The background shows a softly lit room with plants, a window, and a sofa.
Woman standing in a living room wearing a Gray Cooling Fashion Vest with Kool Max® packs
A smiling woman with curly brown hair stands indoors wearing a sleeveless khaki fashion cooling vest with a black short-sleeve layer underneath, paired with dark blue jeans. The background shows a softly lit room with plants, a window, and a sofa.
A smiling woman with curly brown hair stands indoors wearing a sleeveless black fashion cooling vest over a light blue top and dark jeans. The photo is taken in a softly lit room with plants and a window in the background.
Woman standing in a living room wearing a Light Blue Cooling Fashion Vest with Kool Max® packs
A woman with curly brown hair stands indoors wearing a light pink sleeveless fashion cooling zip-front vest over a black short-sleeve top and blue jeans. The photo is taken in a softly lit room with plants and a window in the background.
A smiling woman with curly brown hair stands indoors wearing a sleeveless khaki fashion cooling vest with a black short-sleeve layer underneath, paired with dark blue jeans. The background shows a softly lit room with plants, a window, and a sofa.
A woman with curly brown hair stands indoors wearing a light pink sleeveless fashion cooling zip-front vest over a black short-sleeve top and blue jeans. The photo is taken in a softly lit room with plants and a window in the background.

Cool Teens™ Girls' Fashion Cooling Vest with Cool58® Packs

From $175.00
Man wearing a blue Kool Max® Adjustable Zipper Cooling Vest in a bright living room with plants in the background.
Man wearing a blue Kool Max® Adjustable Zipper Cooling Vest in a bright living room with plants in the background.
Man wearing a khaki Adjustable Zipper Cooling Vest with Cool58® Packs in a bright living room with plants in the background.
Man wearing a blue Kool Max® Adjustable Zipper Cooling Vest in a bright living room with plants in the background.
Woman wearing a blue Adjustable Zipper Cooling Vest with Kool Max® packs in a bright living room with plants.

Adjustable Zipper Cooling Vest with Strip Packs

From $145.00
Man wearing a blue Kool Max® Adjustable Zipper Cooling Vest in a bright living room with plants in the background.
A woman with purple hair is wearing a navy blue waist Adjustable Zipper Cooling Vest in nylon in a brightly lit living room setting.
Woman standing in a living room wearing a Gray Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Gray Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Khaki Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Black Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Light Blue Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Pink Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Gray Cooling Fashion Vest with Kool Max® packs
Woman standing in a living room wearing a Gray Cooling Fashion Vest with Cool58® packs

Women's Fashion Cooling Vest

From $145.00
Woman wearing a beige cooling fashion vest with teal sleeves and a beige cooling neck scarf, standing in a living room.
 
Woman wearing a beige cooling fashion vest with teal sleeves and a beige cooling neck scarf, standing in a living room.
Woman outside in front of a green tree wearing a gray fashion cooling vest and a matching gray deluxe cooling neck wrap
Save up to 9%

Women's Fashion Cooling Vest Kits

From $203.83 $216.40
Man wearing a beige fashion cooling vest and deluxe cooling neck wrap in a living room with green plants and a couch.
 
Man wearing a beige fashion cooling vest and deluxe cooling neck wrap in a living room with green plants and a couch.
Man wearing a beige fashion cooling vest and deluxe neck wrap with text about included Kool Max packs for home and away.
Save up to 10%

Men's Fashion Cooling Vest Kits

From $236.77 $254.59
Man wearing a black Kool Max® Fashion Cooling Vest in a bright living room setting
Man wearing a Khaki Kool Max® Fashion Vest in a bright living room.
Man wearing a black Kool Max® Fashion Cooling Vest in a bright living room setting
Man wearing a black Kool Max® Fashion Cooling Vest in a bright living room setting
Man wearing a black Cool58® Fashion Cooling Vest in a bright living room setting

Men's Fashion Cooling Vest

From $165.00