Hollis DX-300X Technical Expedition-Grade Drysuit w/ 5mm Neoprene Socks
In stock — ships from Irvine, CA
Hollis DX-300X Technical Expedition-Grade Drysuit w/ 5mm Neoprene Socks - ML (Medium Large) is backordered and will ship as soon as it is back in stock.
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Wetsuits
Neotek V2 8/7/6 & 4/3 Wetsuit
| SIZE | WEIGHT (lbs) | HEIGHT (in) | CHEST (in) | WAIST (in) | HIP (in) |
|---|---|---|---|---|---|
| SM | 135 – 150 | 5'6" – 5'8" | 36 – 38 | 29 – 31 | 35 – 36 |
| MD | 155 – 170 | 5'8" – 5'10" | 38 – 40 | 31 – 33 | 37 – 39 |
| ML | 165 – 180 | 5'9" – 5'11" | 40 – 41 | 32 – 34 | 38 – 40 |
| LG/SH | 170 – 185 | 5'7" – 5'9" | 41 – 42 | 33 – 35 | 39 – 41 |
| LG | 175 – 190 | 5'10" – 6'1" | 41 – 42 | 33 – 35 | 39 – 41 |
| XL/SH | 185 – 200 | 5'8" – 5'10" | 42 – 44 | 35 – 37 | 41 – 43 |
| XL | 190 – 205 | 5'11" – 6'3" | 42 – 44 | 35 – 37 | 41 – 43 |
| XXL | 205 – 220 | 6'0" – 6'3" | 44 – 46 | 37 – 39 | 44 – 46 |
| XXXL | 230 – 260 | 6'1" – 6'4" | 47 – 50 | 40 – 43 | 47 – 50 |
Drysuits
DX-300X Drysuit
| SIZE | LBS | IN | IN | IN | IN | IN | IN |
|---|---|---|---|---|---|---|---|
| XS | 120 - 145 | 63 - 66 | 32 - 36 | 26 - 30 | 32 - 36 | 26 - 28 | 7 |
| SM | 135 - 155 | 66 - 68 | 34 - 38 | 28 - 32 | 34 - 38 | 27 - 29 | 7 |
| MD | 150 - 175 | 67 - 70 | 37 - 40 | 30 - 34 | 35 - 39 | 28 - 30 | 8 |
| ML | 170 - 195 | 69 - 72 | 38 - 42 | 32 - 36 | 37 - 41 | 29 - 31 | 9 |
| LG | 185 - 210 | 70 - 73 | 40 - 44 | 34 - 38 | 39 - 43 | 30 - 32 | 9 |
| XL | 210 - 240 | 71 - 74 | 42 - 46 | 36 - 40 | 41 - 45 | 31 - 33 | 10 |
| XXL | 235 - 265 | 73 - 76 | 44 - 48 | 38 - 42 | 43 - 47 | 32 - 34 | 11 |
| XXXL | 260 - 295 | 74 - 78 | 46 - 50 | 40 - 44 | 45 - 49 | 33 - 35 | 11 |
Fins
F-1 Fins
| REGULAR | XL | XXL |
| 7-9 | 10-12 | 13-15 |
F-2 Fins
| SMALL | REGULAR | XL |
| 4-6 | 7-9 | 10-12 |
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Product Information
Hollis DX-300X Technical Expedition-Grade Drysuit is designed by technical divers, for technical divers. Developed over three years in demanding conditions, it delivers maneuverability and comfort while maintaining long-wearing durability for serious scuba and diving missions. The suit integrates a heavy-duty outer layer, a multi-layer water barrier, and a soft inner liner to balance warmth, mobility, and reliability in challenging environments.
The DX-300X combines a 12-layer Butyl Mass core with an outer Nylon Cordura shell, achieving dependable water tightness and resistance to chemicals and ozone. An inner silk-weave polyester liner offers easy donning and comfortable wear for extended dives, while the patented BIAS cut with a telescopic torso increases freedom of movement and reduces air migration. Wide flat seam construction minimizes leak-prone areas for safer diving gear performance.
Designed for expedition diving, it integrates a low-profile YKK zipper and SiTech silicone seals, including Neck Tite and Quick Cuff wrists, to maintain a secure seal and smooth operation under water. Practical features include two large Velcro bellows pockets with internal D-rings, double-thickness kneepads, 5mm neoprene socks, and adjustable suspenders for a tailored fit across conditions.
- Materials: outer Nylon Cordura shell, 12-layer Butyl Mass core, silk-weave inner liner for comfort and easy donning
- Durability: puncture and abrasion resistance with tear strength over 300 N; wide flat seam construction
- Mobility: patented BIAS cut with a telescopic torso for greater range of motion and reduced air migration
- Seals & closure: YKK low-profile zipper; SiTech Neck Tite silicone seals; SiTech Quick Cuff wrist system
- Pockets & access: two large Velcro bellows pockets with internal D-rings
- Knee protection: double-thickness kneepads for abrasion resistance in demanding environments
- Thermal comfort: 5mm neoprene socks for warmth and protection
- Fit & adjustability: adjustable suspenders provide a secure, customizable fit
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
