UnderCool 3 Double Pack Bundle, Refreeze & Reuse for All‑Day Cooling
$268.98 - $398.98
Shipping calculated at checkout.
FREE SHIPPING & 60 DAY NO HASSLE RETURNS
Stay cooler, longer with the UnderCool 3 Double Pack Bundle – Refreeze & Reuse for All‑Day Cooling.
This set includes one UnderCool 3 cooling garment and two sets of reusable cooling packs, so you can wear one set while the other refreezes, then swap for extended comfort all day.
Highlights
• PCM cooling packs work in both humid and dry heat.
• Recharge in fridge, freezer, or ice water in about 20–60 minutes.
• 4‑way stretch fabric for a flexible, secure fit.
• No condensation or soaking, so you stay cool and dry.
Perfect for anyone managing heat sensitivity, MS, lupus, fibromyalgia, POTS, or menopause, or for actors, cosplayers, and performers who need to stay cool under costume. This bundle gives you reliable, all‑day cooling you can refreeze, reuse, and customize.
Choose the pack combo that fits your day:
• ExtendedCool + ExtendedCool: longest cooling (each set averages 2–3 hours).
• ExtendedCool + SlimCool: a balance of longer cooling and lighter weight.
• SlimCool + SlimCool: lightest feel with 1–2 hours per set.
Built for long shifts, performances, conventions, and outdoor events, this bundle gives you flexible, all‑day cooling you can customize by size, color, and pack combination.
Lightweight, discreet, and easy to wear under everyday clothing, costumes, or workwear, the UnderCool system helps you stay comfortable and focused no matter where the day takes you. Just refreeze, reuse, and keep going.
FAQ
Q: What's included in the UnderCool 3 Double Pack Bundle?
A: One UnderCool 3 cooling garment and two full sets of reusable cooling packs (you select your size, color, and pack combination). Having two sets lets you wear one while the other refreezes, so you can keep cooling all day. Great for heat sensitivity, outdoor work, and long events.
Q: What pack combinations can I choose from?
A: You can pick the combo that matches your needs:
• ExtendedCool + ExtendedCool: longest cooling, about 2–3 hours per set.
• ExtendedCool + SlimCool: one longer‑lasting set, one lighter set.
• SlimCool + SlimCool: lightest feel, about 1–2 hours per set.
Cooling times vary by ambient temperature and activity, but with two sets and refreeze‑and‑swap, you can cover multiple rounds of cooling in a single day.
Q: What size UnderCool cooling vest should I order?
A: Sizing is based on your natural waist measurement, not your shirt, dress, or bra size. Most people wear a smaller size than they expect. For example, if you typically wear a 2XL shirt or have a larger chest, you may only need a Medium UnderCool. The vest is designed to give you a comfortable, snug fit, like a compression garment or Spanx. What matters is your waist, not your cup size or clothing size.
Sizing Tips:
- Find your natural waist. It's below your rib cage but above your belly button.
- Measure against your skin.
- Take your measurements in front of a mirror to make sure the tape is level.
- If you fall between two sizes on the chart, size up.
| Size | Natural Waist (in) | Natural Waist (cm) |
| XXS | 18" - 24" | 46cm - 61cm |
| S | 24" - 31" | 61cm - 78cm |
| M | 31" - 40" | 78cm - 101cm |
| L | 40" - 51" | 101cm - 129cm |
| XXL | 51" - 64" | 129cm - 162cm |
📏 Still have questions? Check our Sizing Guide, jump on live chat, or call us at 585-204-0841. We're happy to help you find your perfect fit.
Q: How long do the cooling packs last, and how do I recharge them?
A: On average:
• SlimCool packs: about 1–2 hours per set.
• ExtendedCool packs: about 2–3 hours per set.
To recharge, simply refreeze and reuse:
• About 20–30 minutes in ice water for the fastest turnaround.
• About 40–60 minutes in a standard household freezer, or
• About 60 minutes in a standard household fridge.
Rotate between sets, one on your body, one refreezing, to stay ahead of the heat.
Q: Do you ship to my area, and how quickly will it arrive?
A: If you order before noon Monday–Friday and your items are in stock, your bundle will ship the same day.
We ship worldwide from Rochester, NY, with free shipping available within the USA, plus standard and expedited options at checkout; once you enter your address, you'll see all available shipping choices and delivery estimates.
Regular price
$268.98
Regular price
$308.98
Sale price
$268.98
Unit price
per
Couldn't load pickup availability
Regular price
$268.98
Regular price
$308.98
Sale price
$268.98
- Reduce Fatigue
- Maintain Cognitive Focus
- Improve Performance and endurance
- Minimize risk of heat related Injury
- Go about your day with no one knowing your wearing it (UnderCool 3 only)
- Works great in humid and dry conditions
- Cooling that lasts between x-y hours
- Feels great
- Recharges in less than 1 hour
- Lightweight (UnderCool 3, Headband, CoolSleeve only)
- Non-Toxic Bio Based
- NOT ICE
- Freezes at 70F (21C) so it is safe against skin
- Works in humid and dry conditions
- Recharge in 15-60 minutes
- Won’t condensate so you will stay dry
- Can be used 1000’s of times for around 3 years
- Easy to Use gif from home page
- Freeze times fridge, freezer, icewater
- Reuse 1000’s of times
- Washing instructions for garment
- Cooling pack care
What clients say
Why We're Better
-
Evaporative Cooling
- Doesn't work in humidity
- Cools your skin, NOT your core directly
- Lightweight & Flexible
- Must be wet
-
Our PCM Cooling System
- Works in any climate
- Cools your core body temp
- Lightweight & flexible
- Dry conformal cooling
-
Gel & Ice Cooling
- Works in any climate
- Too cold for direct skin contact
- Heavy & rigid
- Wet from condensation