Fourth Element J2 Baselayer Men's Leggings 2023
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Use these size guides to find the best fitting size for your Fourth Element Undersuit garments for you. Please be aware that not all sizes are available in all products. See individual product pages for size availability. Please contact us if you have any questions or require further assistance with sizing.
Please note that not all sizes are available in every garment.
Please note: Fourth Element sizes are designed to be snug. For a more comfortable fit, we recommend considering a size up than your usual dress size.
Mens's Sizes
| Sizes | Height | Chest | Waist | Inside Leg* | ||||
|---|---|---|---|---|---|---|---|---|
| Inches | Cm | Inches | Cm | Inches | Cm | Inches | Cm | |
| XS Short | 5'3"-5'6" | 161-169 | 30-34" | 76-86 | 23-27" | 58-68 | 28.5-30.5" | 73-77 |
| XS | 5'5"-5'8" | 165-172.5 | 30-34" | 76-86 | 23-27" | 58-68 | 30-31.5" | 76-80 |
| S Short | 5'5"-5'8" | 165-172.5 | 34-38" | 86-96 | 27-30.5" | 68-78 | 30-31.5" | 76-80 |
| S | 5'7"-5'10" | 170-178 | 34-38" | 86-96 | 27-30.5" | 68-78 | 31-32.5" | 79-83 |
| S Tall | 5'9"-6'0" | 175.5-183 | 34-38" | 86-96 | 27-30.5" | 68-78 | 32.5-34" | 82-86 |
| M Short | 5'7"-5'10" | 170-178 | 38-41.5" | 96-106 | 30.5-34.5" | 78-88 | 31-32.5" | 79-83 |
| M | 5'9"-6'0" | 175.5-183 | 38-41.5" | 96-106 | 30.5-34.5" | 78-88 | 32.5-34" | 82-86 |
| M Tall | 5'11"-6'2" | 180.5-188 | 38-41.5" | 96-106 | 30.5-34.5" | 78-88 | 33.5-35" | 85-89 |
| L Short | 5'9"-6'0" | 175.5-183 | 41.5-45.5" | 106-116 | 34.5-38.5" | 88-98 | 32.5-34" | 82-86 |
| L | 5'11"-6'2" | 180.5-188 | 41.5-45.5" | 106-116 | 34.5-38.5" | 88-98 | 33.5-35" | 85-89 |
| L Tall | 6'1"-6'4" | 185.5-193 | 41.5-45.5" | 106-116 | 34.5-38.5" | 88-98 | 34.5-36" | 88-92 |
| XL Short | 5'11"-6'2" | 180.5-188 | 45.5-49.5" | 116-126 | 38.5-42.5" | 98-108 | 33.5-35" | 85-89 |
| XL | 6'1"-6'4" | 185.5-193 | 45.5-49.5" | 116-126 | 38.5-42.5" | 98-108 | 34.5-36" | 88-92 |
| XL Tall | 6'3"-6'6" | 190.5-198 | 45.5-49.5" | 116-126 | 38.5-42.5" | 98-108 | 36-37.5" | 91-95 |
| XXL Short | 6'1"-6'4" | 185.5-193 | 49.5-53.5" | 126-136 | 42.5-46.5" | 108-118 | 34.5-36" | 88-92 |
| XXL | 6'3"-6'6" | 190.5-198 | 49.5-53.5" | 126-136 | 42.5-46.5" | 108-118 | 36-37.5" | 91-95 |
| XXXL Short | 6'3"-6'6" | 190.5-198 | 53.5-57.5" | 136-146 | 46.5-50.5" | 118-128 | 36-37.5" | 91-95 |
| XXXL | 6'5"-6'8" | 195.5-203 | 53.5-57.5" | 136-146 | 46.5-50.5" | 118-128 | 37-38.5" | 94-98 |
Women's Sizes
| Sizes UK | Sizes USA | Height | Chest | Waist | Hips | Inside Leg* | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | Cm | Inches | Cm | Inches | Cm | Inches | Cm | Inches | Cm | ||
| 6 X Short | 4 X Short | 5'1"-5'4" | 155-162.5 | 27-30" | 68-76 | 20-23" | 51-59 | 30-33" | 76-84 | 26.5-28" | 67-71 |
| 6 Short | 4 Short | 5'2"-5'5" | 157.5-165.5 | 27-30" | 68-76 | 20-23" | 51-59 | 30-33" | 76-84 | 27-28.5" | 69-73 |
| 6 | 4 | 5'3"-5'6" | 160-168 | 27-30" | 68-76 | 20-23" | 51-59 | 30-33" | 76-84 | 28-29.5" | 71-75 |
| 8 X Short | 6 X Short | 5'2"-5'5" | 157.5-165.5 | 29 -32.5" | 74-82 | 22.5-25.5" | 57-65 | 32.5-35.5" | 82-90 | 27-28.5" | 70-75 |
| 8 Short | 6 Short | 5'3"-5'6" | 160-168 | 29 -32.5" | 74-82 | 22.5-25.5" | 57-65 | 32.5-35.5" | 82-90 | 28-29.5" | 71-75 |
| 8 | 6 | 5'4"-5'7" | 162.5-170 | 29 -32.5" | 74-82 | 22.5-25.5" | 57-65 | 32.5-35.5" | 82-90 | 28.5-30.5" | 73-77 |
| 10 X Short | 8 X Short | 5'3"-5'6" | 160-168 | 31.5-34.5" | 80-88 | 25-28" | 63-71 | 34.5-38" | 88-96 | 28-29.5" | 71-75 |
| 10 Short | 8 Short | 5'4"-5'7" | 162.5-170 | 31.5-34.5" | 80-88 | 25-28" | 63-71 | 34.5-38" | 88-96 | 28.5-30.5" | 73-77 |
| 10 | 8 | 5'5"-5'8" | 165-173 | 31.5-34.5" | 80-88 | 25-28" | 63-71 | 34.5-38" | 88-96 | 29.5-31" | 75-79 |
| 12 Short | 10 Short | 5'5"-5'8" | 165-173 | 34-37" | 86-94 | 27-30.5" | 69-77 | 37-40" | 94-102 | 29.5-31" | 75-79 |
| 12 | 10 | 5'6"-5'9" | 167.5-175 | 34-37" | 86-94 | 27-30.5" | 69-77 | 37-40" | 94-102 | 30.5-32" | 77-81 |
| 12/14 (12 top/ 14 bottom) |
10/12 (10 top/ 12 bottom) |
5'6"-5'9" | 167.5-175 | 34-37" | 86-94 | 29.5-32.5" | 75-83 | 39.5-42.5" | 100-108 | 30.5-32" | 77-81 |
| 14 Short | 12 Short | 5'6"-5'9" | 167.5-175 | 36-39.5" | 92-100 | 29.5-32.5" | 75-83 | 39.5-42.5" | 100-108 | 30.5-32" | 77-81 |
| 14 | 12 | 5''7"-5'10" | 170-178 | 36-39.5" | 92-100 | 29.5-32.5" | 75-83 | 39.5-42.5" | 100-108 | 31-32.5" | 79-83 |
| 16 Short | 14 Short | 5''7"-5'10" | 170-178 | 38.5-41.5" | 98-106 | 32-35" | 81-89 | 41.5-45" | 106-114 | 31-32.5" | 79-83 |
| 16 | 14 | 5'8"-5'11" | 172.5-180 | 38.5-41.5" | 98-106 | 32-35" | 81-89 | 41.5-45" | 106-114 | 32-33.5" | 81-85 |
| 18 Short | 16 Short | 5''7"-5'10" | 170-178 | 41-44" | 104 -112 | 34.5-37.5" | 87-95 | 44-47" | 112-120 | 31-32.5" | 79-83 |
| 18 | 16 | 5'8"-5'11" | 172.5-180 | 41-44" | 104 -112 | 34.5-37.5" | 87-95 | 44-47" | 112-120 | 32-33.5" | 81-85 |
| 20 Short | 18 Short | 5''7"-5'10" | 170-178 | 43.5-46.5" | 110-118 | 36.5-40" | 93-101 | 46.5-49.5" | 118-126 | 31-32.5" | 79-83 |
| 20 | 18 | 5'8"-5'11" | 172.5-180 | 43.5-46.5" | 110-118 | 36.5-40" | 93-101 | 46.5-49.5" | 118-126 | 32-33.5" | 81-85 |
Sock Sizes
| Unisex Sizes | UK | US | EU |
|---|---|---|---|
| XS | 3-4 | 4-5 | 35-37 |
| S | 5-6 | 6-7 | 38-40 |
| M | 7-8 | 8-9 | 41-42 |
| L | 9-10 | 10-11 | 43-44.5 |
| XL | 11-12 | 12-13 | 46-47 |
| XXL | 13-4 | 14 - 15 | 48-49 |
Fourth Element J2 Baselayer Men's Leggings are made using a fabric constructed with silver ion technology in order to prevent infections.
This simple, close fitting garment, with super flat seams and soft waistband creates a dry zone next to the skin, offering better thermal protection for extended use under a drysuit.
Stay dry with this quick wicking, top performing undergarment, which removes perspiration away from the skin, offering outstanding comfort during even longer drysuit dives.
FEATURES:
- Developed for J2 caving expedition
- Tested for 19 days, 24 hours a day
- Anti-microbial silver ion technology
- Lightweight and compact
- Fast wicking extreme performance
- Perfect for extended drysuit diving
Easter Bank Holiday - Dispatch & Opening Times:
Order placed after 2.30PM on Thursday 17th April, 2025 will be processed on Tuesday 22nd April, 2025.
Customer Service:
Good Friday 18th April, 2025 - 10AM - 2PM
Easter Monday 21st April, 2025 - 10AM - 2PM
London Store - Opening Times
Good Friday 18th April, 2025 - Closed
Saturday 19th April, 2025 - Open 10:00 to 17:00
Easter Monday 21st April, 2025 - Closed
Tuesday - Showroom & Dispatch Warehouse Open As Usual.
We offer free tracked UK standard delivery on orders over £50 (Excluding Weights and Cylinders, as they must go on a separate service to your order)
Standard UK delivery and Next Business Day UK delivery rates are calculated at checkout and offers a number of courier options for maximum convenience to you.
International shipping rates depend on items, shipment weight and destination. Shipping costs are calculated at checkout.
Estimated delivery times are shown during checkout and reflect your chosen delivery method. More Details
60 Day Stress Free Returns
If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!
Mike's Dive Store offer an extended returns policy of 60 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back, and we will either exchange it or offer a full refund less any postage costs. Too easy!
Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee, but we will let you know about these items before we 'special order' them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return. More Details
Returning To Chiswick Store
We want to make your shopping experience as seamless and enjoyable as possible, even when it comes to returns. That’s why we offer hassle-free returns at our Chiswick store. But there’s more—when you visit to make a return, you can also pre-order items to be available for collection. This means we’ll have a range of sizes ready for you to try on, ensuring you find the perfect fit before leaving the store.
Shop with Confidence, Wherever You Are
To make things even easier, we offer complimentary video consultations with our expert team. Whether it’s before or after your purchase, our specialists can guide you through sizing, fit, and styling—all from the comfort of your home. It’s like having your own personal VIP shopping experience, tailored just for you.
From returns to reorders, we’re here to help you find exactly what you need with zero stress.
Book Video Consultation: Book Now
We offer the option for customers to choose ‘Pickup in store’ as a shipment method, allowing your order to be picked up from our Chiswick store at a time and date that works for you (within our business hours). The process is really easy, but we'll run through it here:
Step 1 - Add products to your cart:
Browse our vast selection of diving and snorkelling equipment, adding the kit you want to your cart.
Step 2 - Head to your cart:
Click on the cart icon to see a summary of the items you are about to purchase.
Step 3 – Review Your Order and Proceed to Checkout:
Once you're satisfied with the items in your cart, you can add a note to your order under the "Order Summary" section if desired. When you're ready to proceed, simply click "Checkout" to complete your order.
Step 4 - Customer Information:
If you have a Mike's Dive Store account, simply log in to autofill your details. If not, enter your email address, select ‘Pickup in Store,’ and then click ‘Continue to Payment’ to proceed.
Step 5 – Payment & Billing Details:
Select your preferred payment method and enter your payment information. Below, provide your billing details. If you're logged into your account, please double-check that your billing and contact information are up to date.
Step 6 – Review Order:
After entering your payment details, click ‘Review Order’ to proceed with placing your order. You will receive an email confirmation with your unique order number. We will notify you when your order is ready for collection, usually within 4 hours or sooner during our opening hours (Monday to Saturday, 10 AM to 6 PM). Please note that our hours may vary during the Christmas and New Year periods.
Our London Store Information:
Address:
Mike's Dive Store, 113 Power Rd, Chiswick, West London, W4 5PY
Telephone:
Local: 01202 037162
International: 0044 1202 037162
Email:
All Enquiries - support@mikesdivestore.com
Store Opening Times:
Mon - Fri: 10am - 6pm
Sat: 10am - 5pm
Sun: Closed
Need Help?
Our expert diving team is here to assist with your order, sizing, or product selection. We're divers ourselves, ready to support you!
Chat Hours:
Monday - Friday: 09:00 AM - 05:50 PM GMT
Prefer a call back? Just request it through the chat bubble!
Store Location
Mike's Dive Store
113 Power Rd, Chiswick, West London, W4 5PY
Store Hours
Mon - Fri: 10 AM - 6 PM
Sat: 10 AM - 5 PM
Sun: Closed
Bank Holidays: Store & Warehouse Closed (no dispatch)
Online Video Consultations
Unable to visit us? Book a live video consultation for tailored advice on equipment, fitting, or specialized gear. Get expert guidance from our team, face-to-face. Book Now
For more answers, visit our FAQs.