A firm favourite for the Surfdock Team, we have been wearing the Psycho Tech 5/4 Chest Zip wetsuit for many years. Its latest iteration features Technobutter 4 neoprene made from recycled materials and offering the best heat retention, flexibility and comfort available on the market.
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
The O'Neill Psycho Tech 5/4+ Chest Zip wetsuit has been a firm favourite for us and for all of you for many years now. The new 2023 model has been updated with Technobutter 4 neoprene to offer even more incredible performance. Featuring recycled materials the new Technobutter 4 range is the next step in O'Neills sustainability journey. We have put Technobutter 4 to the test already and love how warm and stretchy it feels. The reduced drying time comes in very handy when surfing on consecutive days.
Key Features
- plus 0.5mm for additional warmth
- anti-flush barrier
- drainholes prevent water from entering the suit
- minimal seam design
- recycled materials - TB4, TB4X, TB4 Air Firewall, TB4 Firewall
- superseal handcuffs
- Plasma wrist and 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 and shoulders
- TB4X (recycled material) - entry
- TB4 Duraskin (SL) Air Firewall (recycled materials) - chest and back
- TB4 Firewall (recycled materials) - thigh, butt, shins & calves
The new Technobutter 4 material explained:
TB4: Technobutter 4 builds on the legendary Technobutter 3, the next evolution of the jersey introduces recycled yarns infused with graphene for increased wear strength and heat retention.
TB4X: Technobutter 4x goes beyond the gooey and soft feel of TB3x. Recycled graphene fibres line the jersey allowing for incredible stretch with added strength and warmth retention, all with a new look.
TB4 Firewall: The all new Technobutter 4 Firewall utilises the recycled graphene fibres at a thicker pile to create a fire hot feedback loop. As the body heat warms the graphene fibres they conduct the heat back into the body.
