You want the warmest and most comfortable back zip wetsuit on the market then look no further. O'Neill's Technobutter 4 wetsuits are the top of the range wetsuits to get you through the coldest days. Added bonus, they are made with recycled materials, so offer a more sustainable option.
Size chart
Metric sizing
| Size | Height (cm) | Weight (kg) | Chest (cm) | Waist (cm) |
|---|---|---|---|---|
| 2XS | 168-173 | 52-59 | 90-93 | 70-72 |
| Extra Small | 170-175 | 57-64 | 93-95 | 72-75 |
| Small Short | 166-171 | 59-68 | 95-99 | 75-79 |
| Small | 173-178 | 61-70 | 95-99 | 75-79 |
| Small Tall | 183-188 | 66-75 | 95-99 | 75-79 |
| Medium Short | 169-174 | 66-75 | 98-103 | 77-83 |
| Medium | 175-180 | 70-77 | 98-103 | 77-83 |
| Medium Tall | 185-191 | 73-82 | 98-103 | 77-83 |
| Large Short | 171-177 | 73-82 | 104-110 | 84-89 |
| Large | 178-183 | 77-86 | 104-110 | 84-89 |
| Large Tall | 188-193 | 82-91 | 104-110 | 84-89 |
| Extra Large Short | 174-179 | 82-91 | 110-117 | 89-94 |
| Extra Large | 180-185 | 86-95 | 110-117 | 89-94 |
| Extra Large Tall | 191-196 | 91-100 | 110-117 | 89-94 |
| 2XL | 183-188 | 95-104 | 117-123 | 94-99 |
| 3XL | 183-188 | 104-113 | 123-130 | 99-112 |
| 4XL | 185-193 | 113-122 | 130-136 | 112-122 |
Imperial sizing
| Size | Height (in) | Weight (lb) | Chest (in) | Waist (in) |
|---|---|---|---|---|
| 2XS | 5'6"-5'8" | 115-130 | 35½-36½ | 27½-28½ |
| Extra Small | 5'7"-5'9" | 125-140 | 36½-37½ | 28½-29½ |
| Small Short | 5'5½"-5'7½" | 130-150 | 37½-39 | 29½-31 |
| Small | 5'8"-5'10" | 135-155 | 37½-39 | 29½-31 |
| Small Tall | 6'-6'2" | 145-165 | 37½-39 | 29½-31 |
| Medium Short | 5'6½"-5'8½" | 145-165 | 39-41 | 31-33 |
| Medium | 5'9"-5'11" | 155-170 | 39-41 | 31-33 |
| Medium Tall | 6'1"-6'3" | 160-180 | 39-41 | 31-33 |
| Large Short | 5'7½"-5'9½" | 160-180 | 41-43½ | 33-35 |
| Large | 5'10"-6' | 170-190 | 41-43½ | 33-35 |
| Large Tall | 6'2"-6'4" | 180-200 | 41-43½ | 33-35 |
| Extra Large Short | 5'8½"-5'10½" | 180-200 | 43½-46 | 35-37 |
| Extra Large | 5'11"-6'1" | 190-210 | 43½-46 | 35-37 |
| Extra Large Tall | 6'3"-6'5" | 200-220 | 43½-46 | 35-37 |
| 2XL | 6'-6'2" | 200-230 | 46-48½ | 37-39 |
| 3XL | 6'-6'3" | 230-250 | 48½-51 | 39-44 |
| 4XL | 6'1"-6'4" | 250-270 | 51-53½ | 44-48 |
Frequently bought together
Description
O'Neill's Psycho Tech 5/4+mm TB4 mens wetsuit with a back zip offers premium warmth, strength, and sustainability with the use of partially recycled materials and watertight, stitchless seams. Utilizing TB4 Firewall technology, the TB4 Duraskin Air Firewall in the chest and back prevents heat loss, optimizing body heat to ensure a comfortable, longer stay in the water.
Features
- Plus 0.5mm for additional warmth
- Anti-flush barrier in both zen zip & f.u.z.e.
- Drainholes prevent water from entering suit
- Recycled materials - tb4; tb4x; tb4 air firewall; tb4 firewall
- Superseal hand cuffs
- Plasma wrist & ankle seals
- Krypto knee padz
- Double super-seal collar
- Key pocket with loop
Construction
- Stitchless glued seams (triple glued)
- Exterior fluid seam weld
- Interior recycled tb3x tape
- Tb4 (recycled material) - arms & shoulders
- Tb4x (recycled material) - entry
- Tb4 duraskin (sl) air firewall (recycled materials) - chest & back
- Tb4 firewall (recycled materials) - thigh, butt, shins & cal
